Tru-Flate Quick Connect Air Couplings
Air leaks and slow tool swaps eat air and uptime. Tru-Flate quick connect couplings lock in fast, seal tight and keep flow up to 67 SCFM for impacts, blow guns and shop air drops. Choose standard zinc-plated, heavy-duty nitrated steel, composite safety venting or 4-ball high flow. We stock matching male and female nipples so you plug in and get back to work.
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Tru-Flate®/Industrial Interchange Milton® Air Line Safety Female Couplers
Milton® True-Flate®/Industrial Interchange air line safety female couplers for pneumatic quick-connect setups. These threaded NPT couplers are carbon steel and rated to 200 psi with a max operating temp of 225°F. Variants in this table cover 3/8" and 1/2" body sizes with internal (FPT) threads in 1/4"-18, 3/8"-18, and 1/2"-14 sizes.
| Item # | Body Size | Thread Size | Measurement Type | Maximum Pressure | Material | Interface | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|---|
|
|
52565
|
3/8"
|
1/4"-18
|
NPT
|
200 psi
|
Carbon Steel
|
Industrial Interchange, Tru-Flate
|
1
|
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|
|
52567
|
3/8"
|
3/8"-18
|
NPT
|
200 psi
|
Carbon Steel
|
Industrial Interchange, Tru-Flate
|
1
|
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|
|
52569
|
1/2"
|
1/2"-14
|
NPT
|
200 psi
|
Carbon Steel
|
Industrial Interchange, Tru-Flate
|
1
|
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Tru-Flate Air Couplers
Tru-Flate female air couplers in zinc-plated steel for pneumatic connections. Threaded NPT ends with 1/4" or 3/8" bodies for typical shop and industrial air lines. Zinc plating resists corrosion and provides longer service life while body size helps define airflow capacity.
Body Size: 1/4"
| Item # | Thread Size | Thread Type | Measurement Type | Maximum Pressure | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
52926
|
1/4"-18
|
Internal
|
NPT
|
300 psi
|
Steel
|
2
|
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|
|
52963
|
3/8"-18
|
Internal
|
NPT
|
300 psi
|
Steel
|
2
|
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Body Size: 3/8"
| Item # | Thread Size | Thread Type | Measurement Type | Maximum Pressure | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
52980
|
1/4"-18
|
Internal
|
NPT
|
300 psi
|
Steel
|
1
|
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|
|
52956
|
3/8"-18
|
Internal
|
NPT
|
300 psi
|
Steel
|
1
|
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Tru-Flate Push-Button Air Couplers
Push-button Tru-Flate air couplers made from composite material with recessed side button for safer one-hand connect and disconnect. Lightweight and non-scratching exterior. Thru o-ring leak reduction helps lower compressor run time and operating costs.
Body Size: 1/4"
| Item # | Thread Size | Thread Type | Measurement Type | Maximum Pressure | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
52335
|
1/4"-18
|
External
|
NPT
|
175 psi
|
Composite
|
1
|
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|
|
52334
|
1/4"-18
|
Internal
|
NPT
|
175 psi
|
Composite
|
1
|
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|
|
52336
|
3/8"-18
|
Internal
|
NPT
|
175 psi
|
Composite
|
1
|
Log in to view price |
Body Size: 3/8"
| Item # | Thread Size | Thread Type | Measurement Type | Maximum Pressure | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
52337
|
1/4"-18
|
Internal
|
NPT
|
175 psi
|
Composite
|
1
|
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|
|
52338
|
3/8"-18
|
Internal
|
NPT
|
175 psi
|
Composite
|
1
|
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Tru-Flate Push-Button Safety Couplers
Tru-Flate push-button safety couplers are composite female air line couplers with internal NPT threads and color-coded buttons. One press purges air and releases the nipple to reduce hose whip and accidental disconnects. Impact-resistant body provides a non-scratching, ergonomic grip.
Body Size: 1/4"
| Item # | Thread Size | Thread Type | Measurement Type | Maximum Pressure | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
52329
|
1/4"-18
|
Internal
|
NPT
|
174 psi
|
Composite
|
1
|
Log in to view price |
Body Size: 3/8"
| Item # | Thread Size | Thread Type | Measurement Type | Maximum Pressure | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
52331
|
3/8"-18
|
Internal
|
NPT
|
174 psi
|
Composite
|
1
|
Log in to view price |
Body Size: 1/2"
| Item # | Thread Size | Thread Type | Measurement Type | Maximum Pressure | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
52583
|
3/8"-18
|
Internal
|
NPT
|
174 psi
|
Composite
|
1
|
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|
|
52584
|
1/2"-14
|
Internal
|
NPT
|
174 psi
|
Composite
|
1
|
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Tru-Flate Parker® 4 Ball High Flow Air Couplers
Parker Tru-Flate 4 ball high flow female air coupler in brass with 1/4" NPT internal threads. Four-ball lock improves reliability and service life. Tubular valve provides high airflow with minimal pressure drop and nitrile seals form a bubble-tight seal for equipment connections.
Body Size: 1/4"
| Item # | Thread Size | Thread Type | Measurement Type | Maximum Pressure | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
52595
|
1/4"-18
|
Internal
|
NPT
|
300 psi
|
Brass
|
1
|
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Tru-Flate Parker Push-Lok® Style Air Couplers
Tru-Flate Parker Push-Lok® style air couplers in brass with hose barb ends. Fast push-on connection requires no clamps or crimping and provides secure grip and 300 psi maximum pressure. Compatible with Parker Push-Lok and Flex-Loc hose series for shop and industrial use.
Body Size: 1/4"
| Item # | Hose Size | Maximum Pressure | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|
|
|
52835
|
1/4"
|
300 psi
|
Brass
|
1
|
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|
|
52836
|
3/8"
|
300 psi
|
Brass
|
1
|
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Tru-Flate®/Industrial Interchange Milton® Air Line Safety Male Couplers
Milton® True-Flate®/Industrial Interchange air line safety male couplers for pneumatic quick-connect setups. These threaded NPT couplers are carbon steel and rated to 200 psi with a max operating temp of 225°F. Variants in this table cover 3/8" and 1/2" body sizes with external (MPT) threads in 1/4"-18, 3/8"-18, and 1/2"-14 sizes.
| Item # | Body Size | Thread Size | Measurement Type | Maximum Pressure | Material | Interface | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|---|
|
|
52566
|
3/8"
|
1/4"-18
|
NPT
|
200 psi
|
Carbon Steel
|
Industrial Interchange, Tru-Flate
|
1
|
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|
|
52568
|
3/8"
|
3/8"-18
|
NPT
|
200 psi
|
Carbon Steel
|
Industrial Interchange, Tru-Flate
|
1
|
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|
|
52570
|
1/2"
|
1/2"-14
|
NPT
|
200 psi
|
Carbon Steel
|
Industrial Interchange, Tru-Flate
|
1
|
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Tru-Flate Kim-Flo Composite Couplers
Tru-Flate Kim-Flo composite couplers for air fittings. Composite body with push-in automatic coupling and composite retention tabs improves service life and resists abrasion, impact, crushing and static build-up. Suitable for shop and equipment maintenance tasks.
Body Size: 1/4"
| Item # | Thread Size | Thread Type | Measurement Type | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|---|
|
|
523671
|
1/4"-18
|
External
|
NPT
|
Composite
|
1
|
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|
|
523670
|
1/4"-18
|
Internal
|
NPT
|
Composite
|
1
|
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|
|
523673
|
3/8"-18
|
External
|
NPT
|
Composite
|
1
|
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|
|
523672
|
3/8"-18
|
Internal
|
NPT
|
Composite
|
1
|
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Tru-Flate Kim-Flo Safety Couplers
Tru-Flate Kim-Flo safety couplers are composite push-to-connect air couplers with Tru-Flate interface and NPT threaded ends. Composite retention tabs improve service life and reduce marring. Two-stage safety design helps depressurize before disconnecting for safer air tool use.
Body Size: 1/4"
| Item # | Thread Size | Thread Type | Measurement Type | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|---|
|
|
523678
|
1/4"-18
|
External
|
NPT
|
Composite
|
1
|
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|
|
523674
|
1/4"-18
|
Internal
|
NPT
|
Composite
|
1
|
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|
|
523677
|
3/8"-18
|
External
|
NPT
|
Composite
|
1
|
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|
|
523676
|
3/8"-18
|
Internal
|
NPT
|
Composite
|
1
|
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Tru-Flate Male Nipples
Tru-Flate male nipples for air fittings. Constructed from zinc-plated steel or noncorroding brass with standard NPT external threads and Tru-Flate interface. Body sizes handle common shop air volumes and resist corrosion for longer service life, useful for equipment maintenance.
Body Size: 1/4"
| Item # | Thread Size | Thread Type | Measurement Type | Maximum Pressure | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
52928B
|
1/4"-18
|
External
|
NPT
|
300 psi
|
Brass
|
5
|
Log in to view price | |
|
|
52928
|
1/4"-18
|
External
|
NPT
|
300 psi
|
Steel
|
5
|
Log in to view price | |
|
|
52965
|
3/8"-18
|
External
|
NPT
|
300 psi
|
Steel
|
2
|
Log in to view price |
Body Size: 3/8"
| Item # | Thread Size | Thread Type | Measurement Type | Maximum Pressure | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
52981
|
1/4"-18
|
External
|
NPT
|
300 psi
|
Steel
|
2
|
Log in to view price | |
|
|
52957
|
3/8"-18
|
External
|
NPT
|
300 psi
|
Steel
|
2
|
Log in to view price |
Body Size: 1/2"
| Item # | Thread Size | Thread Type | Measurement Type | Maximum Pressure | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
52892
|
3/8"-18
|
External
|
NPT
|
300 psi
|
Steel
|
2
|
Log in to view price | |
|
|
52954
|
1/2"-14
|
External
|
NPT
|
300 psi
|
Steel
|
2
|
Log in to view price |
Tru-Flate Female Nipples
Tru-Flate female nipples for air fittings in steel or brass with zinc plate on steel options. Standard NPT internal threads and Tru-Flate interface. Body sizes offer varied air capacity and the corrosion-resistant finishes help extend service life for general industrial and repair use.
Body Size: 1/4"
| Item # | Thread Size | Thread Type | Measurement Type | Maximum Pressure | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
52929B
|
1/4"-18
|
Internal
|
NPT
|
300 psi
|
Brass
|
5
|
Log in to view price | |
|
|
52929
|
1/4"-18
|
Internal
|
NPT
|
300 psi
|
Steel
|
5
|
Log in to view price | |
|
|
52964
|
3/8"-18
|
Internal
|
NPT
|
300 psi
|
Steel
|
2
|
Log in to view price |
Body Size: 3/8"
| Item # | Thread Size | Thread Type | Measurement Type | Maximum Pressure | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
52982
|
1/4"-18
|
Internal
|
NPT
|
300 psi
|
Steel
|
2
|
Log in to view price | |
|
|
52958
|
3/8"-18
|
Internal
|
NPT
|
300 psi
|
Steel
|
2
|
Log in to view price |
Body Size: 1/2"
| Item # | Thread Size | Thread Type | Measurement Type | Maximum Pressure | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
52893
|
3/8"-18
|
Internal
|
NPT
|
300 psi
|
Steel
|
2
|
Log in to view price | |
|
|
52955
|
1/2"-14
|
Internal
|
NPT
|
300 psi
|
Steel
|
2
|
Log in to view price |
Heavy-Duty Tru-Flate Male Nipples
Heavy-duty Tru-Flate male nipples made from nitrided steel for improved corrosion resistance and longer service life. Threaded external NPT connections with close tolerances provide leak‑free performance and full use up to 230 psi. Suitable for air-line couplers and repair tasks.
Body Size: 1/4"
| Item # | Thread Size | Thread Type | Measurement Type | Maximum Pressure | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
521287
|
1/4"-18
|
External
|
NPT
|
230 psi
|
Nitrited Steel
|
5
|
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Body Size: 3/8"
| Item # | Thread Size | Thread Type | Measurement Type | Maximum Pressure | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
521289
|
1/4"-18
|
External
|
NPT
|
230 psi
|
Nitrited Steel
|
2
|
Log in to view price | |
|
|
521291
|
3/8"-18
|
External
|
NPT
|
230 psi
|
Nitrited Steel
|
2
|
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Tru-Flate Color-Coded Female Nipples
Tru-Flate color-coded female nipple plug made of heat-treated aluminum with zinc-plated finish and 1/4"-18 internal NPT threads. Blue Tru-Flate interface provides quick visual identification to avoid misconnections and helps prevent cross-contamination between lubricated and dry lines.
Body Size: 1/4"
| Item # | Thread Size | Thread Type | Measurement Type | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|---|
|
|
521319
|
1/4"-18
|
Internal
|
NPT
|
Aluminum
|
5
|
Log in to view price |
Heavy-Duty Tru-Flate Female Nipples
Heavy-duty Tru-Flate female nipples made from nitrided steel for improved corrosion resistance and longer service life. Threaded internal NPT connections with close tolerances provide leak-free performance and full use up to 230 psi. Suitable for air-line couplers and repair tasks.
Body Size: 1/4"
| Item # | Thread Size | Thread Type | Measurement Type | Maximum Pressure | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
521288
|
1/4"-18
|
Internal
|
NPT
|
230 psi
|
Nitrited Steel
|
5
|
Log in to view price |
Body Size: 3/8"
| Item # | Thread Size | Thread Type | Measurement Type | Maximum Pressure | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
521290
|
1/4"-18
|
Internal
|
NPT
|
230 psi
|
Nitrited Steel
|
2
|
Log in to view price | |
|
|
521292
|
3/8"-18
|
Internal
|
NPT
|
230 psi
|
Nitrited Steel
|
2
|
Log in to view price |
Tru-Flate Parker Push-Lok® Style Nipples
Tru-Flate Parker Push-Lok® style nipples for push-on hose connections. Steel construction with zinc plated finish and hose barb ends. Quick, tool-free attachment provides secure grip and reduces installation time. Suited for shop air systems and general industrial use.
Body Size: 1/4"
| Item # | Hose Size | Maximum Pressure | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|
|
|
52833
|
1/4"
|
300 psi
|
Steel
|
2
|
Log in to view price | |
|
|
52834
|
3/8"
|
300 psi
|
Steel
|
2
|
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3 options | Item #:
52565
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4 options | Item #:
52926
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5 options | Item #:
52335
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4 options | Item #:
52329
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1 option | Item #:
52595
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2 options | Item #:
52835
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3 options | Item #:
52566
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4 options | Item #:
523671
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4 options | Item #:
523678
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7 options | Item #:
52928B
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7 options | Item #:
52929B
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3 options | Item #:
521287
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1 option | Item #:
521319
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3 options | Item #:
521288
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2 options | Item #:
52833
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