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4-PB7 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

4-PB7: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: STEEL BODY, overall_length: 2.380 INCHES NOMINAL IN, connection_type: THREADED EXTERNAL HOSE GRIPPING FIRST FLUID END CONNECTION, connection_style: HOSE GRIPPING NIPPLE ALL ENDS, style_designator: MALE COUPLING HALF, quick_disconnect_method: PUSH-PULL ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-332-5312, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
4-PB7
NSN: 4730-01-332-5312
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 73992 — TUTHILL CORP HANSEN COUPLING DIV (USA)
SPECIFICATIONS
materialSTEEL BODY
overall_length2.380 INCHES NOMINAL IN
connection_typeTHREADED EXTERNAL HOSE GRIPPING FIRST FLUID END CONNECTION
connection_styleHOSE GRIPPING NIPPLE ALL ENDS
style_designatorMALE COUPLING HALF
quick_disconnect_methodPUSH-PULL ALL ENDS
nominal_inside_diameter_hose_accommodated0.250 INCHES ALL ENDS IN
first_end_outside_diameter_hose_accommodated0.625 INCHES NOMINAL IN
NSN4730-01-332-5312
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4-PB7 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CONNECTION STYLE: HOSE GRIPPING NIPPLE ALL ENDS
•
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 0.250 INCHES ALL ENDS IN
•
CONNECTION TYPE: THREADED EXTERNAL HOSE GRIPPING FIRST FLUID END CONNECTION
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
FIRST END OUTSIDE DIAMETER HOSE ACCOMMODATED: 0.625 INCHES NOMINAL IN
•
MATERIAL: STEEL BODY
•
QUICK DISCONNECT METHOD: PUSH-PULL ALL ENDS
TECHNICAL CHARACTERISTICS
CONNECTION STYLEHOSE GRIPPING NIPPLE ALL ENDS
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.250 INCHES ALL ENDS IN
CONNECTION TYPETHREADED EXTERNAL HOSE GRIPPING FIRST FLUID END CONNECTION
STYLE DESIGNATORMALE COUPLING HALF
OVERALL LENGTH2.380 INCHES NOMINAL IN
FIRST END OUTSIDE DIAMETER HOSE ACCOMMODATED0.625 INCHES NOMINAL IN
MATERIALSTEEL BODY
QUICK DISCONNECT METHODPUSH-PULL ALL ENDS
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4-PB7?
4-PB7 is a COUPLING HALF,QUICK DISCONNECT.
What is the NSN for 4-PB7?
4-PB7 is cataloged in the U.S. Government catalog under NSN 4730-01-332-5312. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.