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712529-3 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

712529-3: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: UNABLE TO DECODE, leg_length: 1.250 INCHES NOMINAL IN, seat_angle: 37.0 DEGREES, thread_class: 3A ALL ENDSUNABLE TO DECODE A, overall_length: 2.977 INCHES NOMINAL IN, connection_type: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTIONUNABLE TO DECODE. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-173-1232, 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
712529-3
NSN: 4730-01-173-1232
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 05869 — RAYTHEON COMPANY DIV RMD STRATEGIC (USA)
SPECIFICATIONS
materialUNABLE TO DECODE
leg_length1.250 INCHES NOMINAL IN
seat_angle37.0 DEGREES
thread_class3A ALL ENDSUNABLE TO DECODE A
overall_length2.977 INCHES NOMINAL IN
connection_typeTHREADED EXTERNAL TUBE FIRST FLUID END CONNECTIONUNABLE TO DECODE
connection_styleFLARED ALL ENDSUNABLE TO DECODE
special_featuresWITH LOCKWIRE HOLES ON HEX AND BULKHEAD THDS ON FLUID CONNECTION END
style_designatorMALE COUPLING HALF
features_providedSELF-SEALING
nominal_thread_size0.750 INCHES ALL ENDSUNABLE TO DECODE IN
end_item_identificationHZN BORRESTAL CLASS CV
NSN4730-01-173-1232
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 712529-3 · 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: FLARED ALL ENDSUNABLE TO DECODE
•
CONNECTION TYPE: INTERNAL QUICK DISCONNECT ALL ENDSUNABLE TO DECODE
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE BODYUNABLE TO DECODE
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES ALL ENDSUNABLE TO DECODE IN
•
QUICK DISCONNECT NOMINAL SIZE: 0.500 INCHES ALL ENDSUNABLE TO DECODE IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEFLARED ALL ENDSUNABLE TO DECODE
CONNECTION TYPEINTERNAL QUICK DISCONNECT ALL ENDSUNABLE TO DECODE
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST FLUID END CONNECTIONUNABLE TO DECODE
STYLE DESIGNATORMALE COUPLING HALF
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE BODYUNABLE TO DECODE
OVERALL LENGTH2.977 INCHES NOMINAL IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES ALL ENDSUNABLE TO DECODE IN
QUICK DISCONNECT NOMINAL SIZE0.500 INCHES ALL ENDSUNABLE TO DECODE IN
LEG LENGTH1.250 INCHES NOMINAL IN
FEATURES PROVIDEDSELF-SEALING
SUBSTITUTES & CROSS-REFERENCES 1
712529Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 712529-3?
712529-3 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 712529-3?
There is 1 known substitute for 712529-3: 712529. Substitute compatibility should be verified for your specific system.
What is the NSN for 712529-3?
712529-3 is cataloged in the U.S. Government catalog under NSN 4730-01-173-1232. 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.