O-Ring Assortments

Leaks love downtime. Our O-Ring Assortments keep the right seals in your kit for hydraulics, pneumatics, A/C and flange fittings. Grab Buna-N 70 for everyday oil and air, step up to 90 durometer for higher pressure and extrusion resistance, go Viton for heat and chemicals. Need better sealing under motion? Use Quad rings. Kimball Midwest keeps you ready.

39 results

Buna-N 90 O-Ring Assortments

Buna-N 90 O-Ring Kits

Buna-N 70 O-Ring Assortments

Metric Buna-N 70 O-Ring Assortments

Buna-N 70 O-Ring Kits

Metric Buna-N 70 O-Ring Kits

For-Seal® Buna-N O-Ring Assortments

Hydraulic O-Ring Assortments

Hydraulic Flange Fitting O-Ring Assortments

Air Conditioning O-Ring Assortments

Viton O-Ring Assortments

Metric Viton O-Ring Assortments

Straight Thread Viton O-Ring Gasket Assortments

Viton Straight Thread O-Ring Assortments

Caterpillar O-Ring, Face-Seal & O-Ring Boss Assortments

Quad O-Ring Assortments

Quad O-Ring Kits

Buna-N 90 O-Ring Assortments

Buna-N 90 o-ring assortments. Manufactured from nitrile with a 90 durometer identified by a yellow stripe. Temperature range -65 °F to 300 °F and resists many oils and solvents. Suitable for high-pressure sealing and equipment maintenance, available in multiple size options.

Name	Material	Durometer	Storage Type	Number of Pieces	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
1/16" - 1/8" Buna-N 90 O-Ring Assortment	Nitrile	90	32-Compartment Drawer	235	1	40490	Log in to view price
1/16" - 1/8" Buna-N 90 O-Ring Assortment Item #: 40490 Package Weight: 8.6 lbs View Product Details Log in to Order
1/16" - 3/16" Buna-N 90 O-Ring Master Assortment	Nitrile	90	Master Assortment	525	1	404911	Log in to view price
1/16" - 3/16" Buna-N 90 O-Ring Master Assortment Item #: 404911 Package Weight: 39.1 lbs View Product Details Log in to Order
1/16" Buna-N 90 O-Ring Assortment	Nitrile	90	32-Compartment Drawer	160	1	40491	Log in to view price
1/16" Buna-N 90 O-Ring Assortment Item #: 40491 Package Weight: 8.2 lbs View Product Details Log in to Order
1/8" Buna-N 90 O-Ring Assortment	Nitrile	90	24-Compartment Drawer	120	1	40493	Log in to view price
1/8" Buna-N 90 O-Ring Assortment Item #: 40493 Package Weight: 10.9 lbs View Product Details Log in to Order
3/16" Buna-N 90 O-Ring Assortment	Nitrile	90	24-Compartment Drawer	85	1	40494	Log in to view price
3/16" Buna-N 90 O-Ring Assortment Item #: 40494 Package Weight: 11.8 lbs View Product Details Log in to Order
3/32" Buna-N 90 O-Ring Assortment	Nitrile	90	32-Compartment Drawer	160	1	40492	Log in to view price
3/32" Buna-N 90 O-Ring Assortment Item #: 40492 Package Weight: 8.2 lbs View Product Details Log in to Order

Buna-N 90 O-Ring Kits

Buna-N 90 o-ring kit containing 382 nitrile seals in 30 common sizes packed in a molded polymer case. Ninety durometer compound provides high strength sealing for high-pressure hydraulic and fitting applications. Withstands -65 °F to 300 °F for broad service use.

Name	Material	Durometer	Storage Type	Number of Pieces	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
382 Piece Buna-N 90 O-Ring Kit (#006 - #327)	Nitrile	90	Poly Box	382	1	5011900	Log in to view price
382 Piece Buna-N 90 O-Ring Kit (#006 - #327) Item #: 5011900 Package Weight: 1.5 lbs View Product Details Log in to Order

Buna-N 70 O-Ring Assortments

Buna-N 70 o-ring assortments. Made from nitrile rubber with 70 durometer and a temperature range of -65 °F to 300 °F. Resists many oils, solvents and fluids and provides reliable sealing for equipment maintenance and general industrial repair tasks.

Name	Material	Durometer	Storage Type	Number of Pieces	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
1/16" - 1/8" Buna-N 70 O-Ring Assortment	Nitrile	70	32-Compartment Drawer	235	1	40500	Log in to view price
1/16" - 1/8" Buna-N 70 O-Ring Assortment Item #: 40500 Package Weight: 8.5 lbs View Product Details Log in to Order
1/16" - 3/16" Buna-N 70 O-Ring Master Assortment	Nitrile	70	Master Assortment	529	1	405011	Log in to view price
1/16" - 3/16" Buna-N 70 O-Ring Master Assortment Item #: 405011 Package Weight: 38.3 lbs View Product Details Log in to Order
1/16" Buna-N 70 O-Ring Assortment	Nitrile	70	32-Compartment Drawer	160	1	40501	Log in to view price
1/16" Buna-N 70 O-Ring Assortment Item #: 40501 Package Weight: 8.2 lbs View Product Details Log in to Order
1/8" Buna-N 70 O-Ring Assortment	Nitrile	70	24-Compartment Drawer	120	1	40503	Log in to view price
1/8" Buna-N 70 O-Ring Assortment Item #: 40503 Package Weight: 10.7 lbs View Product Details Log in to Order
3/16" Buna-N 70 O-Ring Assortment	Nitrile	70	24-Compartment Drawer	89	1	40504	Log in to view price
3/16" Buna-N 70 O-Ring Assortment Item #: 40504 Package Weight: 11.2 lbs View Product Details Log in to Order
3/32" Buna-N 70 O-Ring Assortment	Nitrile	70	32-Compartment Drawer	160	1	40502	Log in to view price
3/32" Buna-N 70 O-Ring Assortment Item #: 40502 Package Weight: 8.2 lbs View Product Details Log in to Order

Metric Buna-N 70 O-Ring Assortments

Metric Buna-N 70 o-ring assortments. Manufactured from nitrile rubber with 70 durometer and rated from -65 °F to 300 °F. Resists a wide range of oils, solvents and fluids which helps improve sealing durability for equipment maintenance and repair tasks.

Name	Material	Durometer	Storage Type	Number of Pieces	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
M1.0 - M2.0 Buna-N 70 O-Ring Assortment	Nitrile	70	32-Compartment Drawer	258	1	405152	Log in to view price
M1.0 - M2.0 Buna-N 70 O-Ring Assortment Item #: 405152 Package Weight: 8.3 lbs View Product Details Log in to Order
M1.0 - M4.0 Buna-N 70 O-Ring Master Assortment	Nitrile	70	Master Assortment	615	1	405151	Log in to view price
M1.0 - M4.0 Buna-N 70 O-Ring Master Assortment Item #: 405151 Package Weight: 38.9 lbs View Product Details Log in to Order
M2.5 - M3.0 Buna-N 70 O-Ring Assortment	Nitrile	70	32-Compartment Drawer	190	1	405153	Log in to view price
M2.5 - M3.0 Buna-N 70 O-Ring Assortment Item #: 405153 Package Weight: 8.5 lbs View Product Details Log in to Order
M3.5 Buna-N 70 O-Ring Assortment	Nitrile	70	24-Compartment Drawer	80	1	405154	Log in to view price
M3.5 Buna-N 70 O-Ring Assortment Item #: 405154 Package Weight: 10.6 lbs View Product Details Log in to Order
M4.0 Buna-N 70 O-Ring Assortment	Nitrile	70	24-Compartment Drawer	87	1	405155	Log in to view price
M4.0 Buna-N 70 O-Ring Assortment Item #: 405155 Package Weight: 11.5 lbs View Product Details Log in to Order
Metric Buna-N 70 O-Ring Assortment	Nitrile	70	32-Compartment Drawer	170	1	40515	Log in to view price
Metric Buna-N 70 O-Ring Assortment Item #: 40515 Package Weight: 8.1 lbs View Product Details Log in to Order

Buna-N 70 O-Ring Kits

Buna-N 70 o-ring kit contains 382 nitrile o-rings in 30 common sizes stored in a sturdy poly case. 70 durometer construction resists oils, solvents and fluids and performs from -65 °F to 300 °F, making it suitable for general industrial, repair and equipment maintenance tasks.

Name	Material	Durometer	Storage Type	Number of Pieces	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
382 Piece Buna-N 70 O-Ring Kit (#006 - #327)	Nitrile	70	Poly Box	382	1	50399	Log in to view price
382 Piece Buna-N 70 O-Ring Kit (#006 - #327) Item #: 50399 Package Weight: 1.7 lbs View Product Details Log in to Order

Metric Buna-N 70 O-Ring Kits

Metric Buna-N 70 o-ring kit containing 386 nitrile rings in multiple metric sizes for general sealing applications. 70 durometer nitrile provides oil and solvent resistance and performs from -65 °F to 300 °F. Supplied in a sturdy poly storage case for organized access.

Name	Material	Durometer	Storage Type	Number of Pieces	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
386 Piece Metric Buna-N 70 O-Ring Kit	Nitrile	70	Poly Box	386	1	51965	Log in to view price
386 Piece Metric Buna-N 70 O-Ring Kit Item #: 51965 Package Weight: 1.5 lbs View Product Details Log in to Order

For-Seal® Buna-N O-Ring Assortments

For-Seal® Buna-N o-ring assortment containing nitrile o-rings sized from 1/4" to 1-1/2" with a 12-compartment drawer for organized storage. Designed for high-pressure hydraulic and pneumatic sealing, resists vibration and meets SAE J1453 for reliable face-seal connections.

Name	Material	Storage Type	Number of Pieces	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
For-Seal® Buna-N O-Ring Assortment (1/4" - 1-1/2")	Nitrile	12-Compartment Drawer	185	1	405091	Log in to view price
For-Seal® Buna-N O-Ring Assortment (1/4" - 1-1/2") Item #: 405091 Package Weight: 7.6 lbs View Product Details Log in to Order

Hydraulic O-Ring Assortments

Hydraulic o-ring assortment containing nitrile seals in assorted sizes stored in a 24-compartment drawer. Black nitrile material resists oil and common hydraulic fluids and performs from -40 °F to 250 °F which helps maintain seals under temperature variation. Useful for hydraulic repair tasks.

Name	Material	Storage Type	Number of Pieces	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
Hydraulic O-Ring Assortment	Nitrile	24-Compartment Drawer	197	1	40509	Log in to view price
Hydraulic O-Ring Assortment Item #: 40509 Package Weight: 11.3 lbs View Product Details Log in to Order

Hydraulic Flange Fitting O-Ring Assortments

Hydraulic flange fitting o-ring assortment containing nitrile black o-rings sized for split flange (JIC/SAE) connections. Nitrile material resists oil and improves sealing for hydraulic systems. Stored in a 12-compartment drawer for organized selection and maintenance use.

Name	Material	Storage Type	Number of Pieces	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
Hydraulic Flange Fitting O-Ring Assortment	Nitrile	12-Compartment Drawer	60	1	40508	Log in to view price
Hydraulic Flange Fitting O-Ring Assortment Item #: 40508 Package Weight: 7.8 lbs View Product Details Log in to Order

Air Conditioning O-Ring Assortments

Assortments of air conditioning o-rings in neoprene and HSN materials. Color-coded black, blue, and green options for R-12 and R-134A service where compatible. Organized in compartment drawers for easy selection and storage.

Name	Material	Storage Type	Number of Pieces	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
Blue, Black & Green Air Conditioning O-Ring Assortment	Neoprene	32-Compartment Drawer	320	1	40498	Log in to view price
Blue, Black & Green Air Conditioning O-Ring Assortment Item #: 40498 Package Weight: 10.1 lbs View Product Details Log in to Order
Green Air Conditioning O-Ring Assortment	HSN	16-Compartment Drawer	120	1	404971	Log in to view price
Green Air Conditioning O-Ring Assortment Item #: 404971 Package Weight: 7.8 lbs View Product Details Log in to Order

Viton O-Ring Assortments

Viton o-ring assortments made from fluorocarbon rubber with a 75 durometer and brown color. Rated for -20 °F to 400 °F and resistant to heat and fluids. Available in multiple storage drawer options and sizes which provides on-hand sealing options for repair and equipment maintenance.

Name	Material	Durometer	Storage Type	Number of Pieces	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
1/16" - 1/8" Viton O-Ring Assortment	Fluorocarbon	75	32-Compartment Drawer	128	1	40510	Log in to view price
1/16" - 1/8" Viton O-Ring Assortment Item #: 40510 Package Weight: 9.1 lbs View Product Details Log in to Order
1/16" - 1/8" Viton O-Ring Master Assortment	Fluorocarbon	75	Master Assortment	261	1	405101	Log in to view price
1/16" - 1/8" Viton O-Ring Master Assortment Item #: 405101 Package Weight: 31.1 lbs View Product Details Log in to Order
1/16" Viton O-Ring Assortment	Fluorocarbon	75	24-Compartment Drawer	115	1	40511	Log in to view price
1/16" Viton O-Ring Assortment Item #: 40511 Package Weight: 10.4 lbs View Product Details Log in to Order
1/8" Viton O-Ring Assortment	Fluorocarbon	75	20-Compartment Drawer	55	1	40513	Log in to view price
1/8" Viton O-Ring Assortment Item #: 40513 Package Weight: 9.7 lbs View Product Details Log in to Order
3/32" Viton O-Ring Assortment	Fluorocarbon	75	24-Compartment Drawer	91	1	40512	Log in to view price
3/32" Viton O-Ring Assortment Item #: 40512 Package Weight: 11 lbs View Product Details Log in to Order

Metric Viton O-Ring Assortments

Metric Viton o-ring assortments made from 75 durometer fluorocarbon rubber. Rated -20 °F to 400 °F and brown/black in color. High resistance to heat and fluids provides durable sealing for equipment maintenance and repair tasks. Options cover small metric sizes.

Name	Material	Durometer	Storage Type	Number of Pieces	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
M1.0 - M2.0 Viton O-Ring Assortment	Fluorocarbon	75	32-Compartment Drawer	135	1	405142	Log in to view price
M1.0 - M2.0 Viton O-Ring Assortment Item #: 405142 Package Weight: 7.8 lbs View Product Details Log in to Order
M2.0 - M3.0 Metric Viton O-Ring Assortment	Fluorocarbon	75	32-Compartment Drawer	96	1	40514	Log in to view price
M2.0 - M3.0 Metric Viton O-Ring Assortment Item #: 40514 Package Weight: 7.7 lbs View Product Details Log in to Order
M2.5 - M3.0 Viton O-Ring Assortment	Fluorocarbon	75	32-Compartment Drawer	93	1	405143	Log in to view price
M2.5 - M3.0 Viton O-Ring Assortment Item #: 405143 Package Weight: 7.9 lbs View Product Details Log in to Order

Straight Thread Viton O-Ring Gasket Assortments

Straight thread Viton o-ring gasket assortment for boss connections made of 90 durometer nitrile. Rated to 10,000 psi with a temperature range of -65 °F to 400 °F. Excellent vibration resistance and no tube flaring required, helps seal high‑pressure instrumentation and hydraulic lines.

Name	Material	Durometer	Storage Type	Number of Pieces	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
Straight Thread Viton O-Ring (Boss) Gasket Assortment	Nitrile	90	12-Compartment Drawer	110	1	40507	Log in to view price
Straight Thread Viton O-Ring (Boss) Gasket Assortment Item #: 40507 Package Weight: 7.7 lbs View Product Details Log in to Order

Viton Straight Thread O-Ring Assortments

Viton straight thread o-ring assortment for boss fittings made from high durometer fluoroelastomer. Designed for high pressure hydraulic and chemical processing applications, resists vibration and temperatures from -65 °F to 400 °F and provides leak-resistant sealing for straight thread connections.

Name	Material	Durometer	Storage Type	Number of Pieces	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
Viton Straight Thread O-Ring (Boss) Assortment	Nitrile	75	12-Compartment Drawer	120	1	405071	Log in to view price
Viton Straight Thread O-Ring (Boss) Assortment Item #: 405071 Package Weight: 7.6 lbs View Product Details Log in to Order

Caterpillar O-Ring, Face-Seal & O-Ring Boss Assortments

Caterpillar o-ring, face-seal and o-ring boss assortment of nitrile (90 durometer) seals designed for hydraulic and high pressure applications. Black and yellow o-rings resist vibration and temperatures from -65 °F to 300 °F and provide broad size options for equipment repair.

Name	Material	Durometer	Storage Type	Number of Pieces	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
Caterpillar O-Ring, Face-Seal & O-Ring Boss Assortment	Nitrile	90	32-Compartment Drawer	160	1	405061	Log in to view price
Caterpillar O-Ring, Face-Seal & O-Ring Boss Assortment Item #: 405061 Package Weight: 8.4 lbs View Product Details Log in to Order

Quad O-Ring Assortments

Quad o-ring assortment of nitrile seals in black with a four-lobed profile that provides two sealing surfaces for improved stability and reduced squeeze. 70 durometer material resists temperatures from -65 °F to 300 °F and helps extend seal life in equipment maintenance.

Name	Material	Durometer	Storage Type	Number of Pieces	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
1/16" - 1/8" Quad O-Ring Assortment	Nitrile	70	32-Compartment Drawer	117	1	405051	Log in to view price
1/16" - 1/8" Quad O-Ring Assortment Item #: 405051 Package Weight: 8.7 lbs View Product Details Log in to Order

Quad O-Ring Kits

Quad o-ring kit of nitrile seals in black with a four-lobed profile that provides two sealing surfaces and reduced friction. The 70 durometer material resists wear and maintains stability to help prevent spiral twist and extend seal life. Suitable for general industrial sealing.

Name	Material	Durometer	Storage Type	Number of Pieces	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
382 Piece Quad O-Ring Kit (#006 - #327)	Nitrile	70	Poly Box	382	1	502330	Log in to view price
382 Piece Quad O-Ring Kit (#006 - #327) Item #: 502330 Package Weight: 1.6 lbs View Product Details Log in to Order