Brass Welding Hose Fittings

Keep your torch hose hookups tight, quick and safe with our brass welding hose fittings. Build or repair 9/16"-18 B-size oxy-fuel lines with barb nipples, couplers and hose nuts, then add quick connectors for fast changeouts. For protection, use check valves and flashback arrestors to stop reverse flow and flashback before they reach the regulator.

18 results

Oxy/Acetylene Welding Quick Connectors

Oxy/Acetylene Welding Flashback Arrestors

Oxy/Acetylene Welding Check Valves

Barb Round Center Stop Hose Splicers

Barb Hose Nuts

9/16"-18 Barb Hose Couplers

Barb Hose Nipples

3/8" Inert Arc Barb Hose Nipple

5/8"-18 Inert Arc Barb Hose Nuts

Oxy/Acetylene Welding Quick Connectors

Oxy/acetylene welding quick connectors made from CA360 brass with 9/16"-18 standard "B" threads. Noninterchangeable oxygen and fuel fittings prevent cross connections and built in demand valve stops gas flow when disconnected. ISO-7289 compatible. Made in the U.S.A.

Application	Thread Size	Measurement Type	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
Oxy/Acetylene	9/16"-18	Standard B	1	832530	Log in to view price
9/16"-18 Standard B Oxy/Acetylene Welding Quick Connectors Item #: 832530 Package Weight: 0.7 lbs View Product Details Log in to Order

Oxy/Acetylene Welding Flashback Arrestors

Oxy/acetylene welding flashback arrestor made from CA360 brass for use with standard "B" 9/16"-18 regulators. Built-in check valve prevents reverse flow and helps stop dangerous flashbacks. Factory flame and leak tested. Made in the U.S.A.

Application	Thread Size	Measurement Type	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
Oxy/Acetylene	9/16"-18	Standard B	1	832531	Log in to view price
9/16"-18 Standard B Oxy/Acetylene Welding Flashback Arrestors Item #: 832531 Package Weight: 0.5 lbs View Product Details Log in to Order

Oxy/Acetylene Welding Check Valves

Oxy/acetylene welding check valves made from CA360 brass for torch- or regulator-mounted installation with 9/16"-18 standard "B" threads. Rated to 200 psi and designed to prevent reverse flow into cylinders, providing increased safety for welding and repair tasks. Made in the U.S.A.

Style	Application	Thread Size	Measurement Type	Maximum Pressure	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
Regulator Mounted	Oxy/Acetylene	9/16"-18	Standard B	200 psi	1	832533	Log in to view price
9/16"-18 Standard B Oxy/Acetylene Regulator-Mounted Welding Check Valves Item #: 832533 Package Weight: 0.2 lbs View Product Details Log in to Order
Torch Mounted	Oxy/Acetylene	9/16"-18	Standard B	200 psi	1	832532	Log in to view price
9/16"-18 Standard B Oxy/Acetylene Torch-Mounted Welding Check Valves Item #: 832532 Package Weight: 0.2 lbs View Product Details Log in to Order

Barb Round Center Stop Hose Splicers

Barb round center stop hose splicers for connecting coolant lines on molds and dies. Made from CA360 brass with a non‑valved design for maximum flow and rated to 200 psi and -90 °F to 400 °F. Short recessed nipples reduce damage and help save mold storage space.

Hose Size	Maximum Pressure	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
3/16"	200 psi	5	521179	Log in to view price
3/16" x 3/16" Barb Round Center Stop Hose Splicer - 5 Pack Item #: 521179 Package Weight: 0.2 lbs View Product Details Log in to Order
1/4"	200 psi	5	521180	Log in to view price
1/4" x 1/4" Barb Round Center Stop Hose Splicer - 5 Pack Item #: 521180 Package Weight: 0.1 lbs View Product Details Log in to Order

Barb Hose Nuts

Barb hose nuts made from CA360 brass for fuel, gas, and oxygen service. Available in left- and right-hand threads with 3/8"-24 and 9/16"-18 female threads. Durable brass construction resists corrosion and helps ensure secure hose connections.

Application	Thread Size	Measurement Type	Hand	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
Fuel Gas	3/8"-24	Aircraft A	Left Hand	10	521176	Log in to view price
3/8"-24 Aircraft A LH Fuel Gas Barb Hose Nut - 10 Pack Item #: 521176 Package Weight: 0.1 lbs View Product Details Log in to Order
Fuel Gas	9/16"-18	Standard B	Left Hand	10	521178	Log in to view price
9/16"-18 LH Fuel Gas Barb Hose Nut - 10 Pack Item #: 521178 Package Weight: 0.4 lbs View Product Details Log in to Order
Oxygen	3/8"-24	Aircraft A	Right Hand	10	521175	Log in to view price
3/8"-24 RH Oxygen Barb Hose Nut - 10 Pack Item #: 521175 Package Weight: 0.1 lbs View Product Details Log in to Order
Oxygen	9/16"-18	Standard B	Right Hand	10	521177	Log in to view price
9/16"-18 RH Standard B Oxygen Barb Hose Nut - 10 Pack Item #: 521177 Package Weight: 0.4 lbs View Product Details Log in to Order

9/16"-18 Barb Hose Couplers

9/16"-18 barb hose couplers made from CA360 brass for oxygen and fuel gas service. Right- and left-hand options with standard "B" 9/16"-18 threads. Brass construction resists corrosion and provides reliable fuel and oxygen connections.

Application	Thread Size	Measurement Type	Hand	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
Fuel Gas	9/16"-18	Standard B	Left	5	521182	Log in to view price
9/16"-18 to 9/16"-18 B to B LH Fuel Gas Barb Hose Coupler - 5 Pack Item #: 521182 Package Weight: 0.3 lbs View Product Details Log in to Order
Oxygen	9/16"-18	Standard B	Right Hand	5	521181	Log in to view price
9/16"-18 to 9/16"-18 B to B RH Oxygen Hose Coupler - 5 Pack Item #: 521181 Package Weight: 0.3 lbs View Product Details Log in to Order

Barb Hose Nipples

Brass barb hose nipples for joining flexible hose in fluid and air lines. Made from CA360 brass with standard B and aircraft A barb profiles and multiple hose size options. Durable corrosion-resistant finish provides reliable sealing.

Hose Size	Length	Measurement Type	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
3/16"	1-7/32"	Aircraft A	10	521172	Log in to view price
3/16" x 1-7/32" Aircraft A Barb Hose Nipple - 10 Pack Item #: 521172 Package Weight: 0.1 lbs View Product Details Log in to Order
3/16"	1-7/16"	Standard B	10	521173	Log in to view price
3/16" x 1-7/16" Standard B Barb Hose Nipple - 10 Pack Item #: 521173 Package Weight: 0.3 lbs View Product Details Log in to Order
1/4"	1-7/16"	Standard B	10	521174	Log in to view price
1/4" x 1-7/16" Standard B Barb Hose Nipple - 10 Pack Item #: 521174 Package Weight: 0.3 lbs View Product Details Log in to Order

3/8" Inert Arc Barb Hose Nipple

3/8" inert arc barb hose nipple made from CA360 brass with a barb head for secure hose retention and inert application compatibility. Durable construction provides corrosion resistance.

Application	Hose Size	Material	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
Inert	3/8"	CA360 Brass	5	521183	Log in to view price
3/8" Inert Arc Barb Hose Nipple - 5 Pack Item #: 521183 Package Weight: 0.3 lbs View Product Details Log in to Order

5/8"-18 Inert Arc Barb Hose Nuts

5/8"-18 inert arc barb hose nuts for fluid and inert gas connections. Made from CA360 brass with right-hand and left-hand thread options. Barb design provides secure hose retention and brass construction resists corrosion.

Application	Thread Size	Hand	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
Inert	5/8"-18	Left	5	521185	Log in to view price
5/8"-18 LH Inert Arc Barb Hose Nut - 5 Pack Item #: 521185 Package Weight: 0.2 lbs View Product Details Log in to Order
Inert	5/8"-18	Right Hand	5	521184	Log in to view price
5/8"-18 RH Inert Arc Barb Hose Nut - 5 Pack Item #: 521184 Package Weight: 0.2 lbs View Product Details Log in to Order