PartsTable
Technical Data Sheet

5277-180A/6 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

5277-180A/6: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, leg_length: 0.500 INCHES NOMINAL IN, special_features: CONNECTOR PLUG, QUICK RELEASE, style_designator: MALE COUPLING HALF. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-545-5227, 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
5277-180A/6
NSN: 4730-01-545-5227
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: K7153 — BVT SURFACE FLEET SUPPORT LTD (HALMATIC RANGE) (GBR)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
leg_length0.500 INCHES NOMINAL IN
special_featuresCONNECTOR PLUG, QUICK RELEASE
style_designatorMALE COUPLING HALF
NSN4730-01-545-5227
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 5277-180A/6 · 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
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
LEG LENGTH: 0.500 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORMALE COUPLING HALF
LEG LENGTH0.500 INCHES NOMINAL IN
SPECIAL FEATURESCONNECTOR PLUG, QUICK RELEASE
MATERIALSTEEL CORROSION RESISTING OVERALL
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 2
5277-180A ITEM 6Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
TK4-26-316Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5277-180A/6?
5277-180A/6 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 5277-180A/6?
There are 2 known substitutes for 5277-180A/6: 5277-180A ITEM 6, TK4-26-316. Substitute compatibility should be verified for your specific system.
What is the NSN for 5277-180A/6?
5277-180A/6 is cataloged in the U.S. Government catalog under NSN 4730-01-545-5227. 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.