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775640 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

775640: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: PLASTIC BODY, leg_length: 0.875 INCHES NOMINAL IN, overall_length: 2.200 INCHES NOMINAL IN, connection_type: EXTERNAL QUICK DISCONNECT ALL ENDS, connection_style: BEADED ALL ENDS, style_designator: MALE COUPLING HALF. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-107-1871, 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
775640
NSN: 4730-01-107-1871
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 80256 — OUTBOARD MARINE CORP (USA)
SPECIFICATIONS
materialPLASTIC BODY
leg_length0.875 INCHES NOMINAL IN
overall_length2.200 INCHES NOMINAL IN
connection_typeEXTERNAL QUICK DISCONNECT ALL ENDS
connection_styleBEADED ALL ENDS
style_designatorMALE COUPLING HALF
features_providedSAFETY LOCKING FEATURE AND SELF-SEALING
quick_disconnect_methodPUSH-PULL ALL ENDS
nominal_inside_diameter_hose_accommodated0.312 INCHES ALL ENDS IN
NSN4730-01-107-1871
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 775640 · 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: BEADED ALL ENDS
•
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 0.312 INCHES ALL ENDS IN
•
CONNECTION TYPE: UNTHREADED EXTERNAL HOSE FIRST FLUID END CONNECTION
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
LEG LENGTH: 0.875 INCHES NOMINAL IN
•
FEATURES PROVIDED: SAFETY LOCKING FEATURE AND SELF-SEALING
TECHNICAL CHARACTERISTICS
CONNECTION STYLEBEADED ALL ENDS
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.312 INCHES ALL ENDS IN
CONNECTION TYPEUNTHREADED EXTERNAL HOSE FIRST FLUID END CONNECTION
CONNECTION TYPEEXTERNAL QUICK DISCONNECT ALL ENDS
STYLE DESIGNATORMALE COUPLING HALF
OVERALL LENGTH2.200 INCHES NOMINAL IN
LEG LENGTH0.875 INCHES NOMINAL IN
FEATURES PROVIDEDSAFETY LOCKING FEATURE AND SELF-SEALING
MATERIALPLASTIC BODY
QUICK DISCONNECT METHODPUSH-PULL ALL ENDS
SUBSTITUTES & CROSS-REFERENCES 4
173247Reference document
Same NSN cross-reference
Reference document — Secondary reference
0174508Reference document
Same NSN cross-reference
Reference document — Secondary reference
ZB0775640Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
174508Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 775640?
775640 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 775640?
There are 4 known substitutes for 775640: 173247, 0174508, ZB0775640 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 775640?
775640 is cataloged in the U.S. Government catalog under NSN 4730-01-107-1871. 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.