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6536K51 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

6536K51: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: STEEL BODY, exterior_color: WHITE, connection_type: INTERNAL QUICK DISCONNECT ALL ENDS, style_designator: MALE COUPLING HALF, features_provided: SAFETY LOCKING FEATURE, surface_treatment: ZINC BODY. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-276-9244, 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
6536K51
NSN: 4730-01-276-9244
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL BODY
exterior_colorWHITE
connection_typeINTERNAL QUICK DISCONNECT ALL ENDS
style_designatorMALE COUPLING HALF
features_providedSAFETY LOCKING FEATURE
surface_treatmentZINC BODY
quick_disconnect_methodPUSH-LOCK ALL ENDS
quick_disconnect_nominal_size0.500 INCHES ALL ENDS IN
NSN4730-01-276-9244
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6536K51 · 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 TYPE: INTERNAL QUICK DISCONNECT ALL ENDS
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
QUICK DISCONNECT NOMINAL SIZE: 0.500 INCHES ALL ENDS IN
•
FEATURES PROVIDED: SAFETY LOCKING FEATURE
•
EXTERIOR COLOR: WHITE
•
SURFACE TREATMENT: ZINC BODY
•
MATERIAL: STEEL BODY
•
QUICK DISCONNECT METHOD: PUSH-LOCK ALL ENDS
TECHNICAL CHARACTERISTICS
CONNECTION TYPEINTERNAL QUICK DISCONNECT ALL ENDS
STYLE DESIGNATORMALE COUPLING HALF
QUICK DISCONNECT NOMINAL SIZE0.500 INCHES ALL ENDS IN
FEATURES PROVIDEDSAFETY LOCKING FEATURE
EXTERIOR COLORWHITE
SURFACE TREATMENTZINC BODY
MATERIALSTEEL BODY
QUICK DISCONNECT METHODPUSH-LOCK 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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6536K51?
6536K51 is a COUPLING HALF,QUICK DISCONNECT.
What is the NSN for 6536K51?
6536K51 is cataloged in the U.S. Government catalog under NSN 4730-01-276-9244. 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.