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64A90C263-2 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

64A90C263-2: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY BODY, leg_length: 0.484 INCHES NOMINAL IN, thread_class: 2B ALL ENDS, overall_length: 1.812 INCHES NOMINAL IN, connection_style: BOSS GASKET SEAL ALL ENDS, style_designator: MALE COUPLING HALF. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-124-2332, 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
64A90C263-2
NSN: 4730-00-124-2332
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialALUMINUM ALLOY BODY
leg_length0.484 INCHES NOMINAL IN
thread_class2B ALL ENDS
overall_length1.812 INCHES NOMINAL IN
connection_styleBOSS GASKET SEAL ALL ENDS
style_designatorMALE COUPLING HALF
nominal_thread_size0.500 INCHES ALL ENDS IN
quick_disconnect_methodPUSH-PULL ALL ENDS
thread_series_designatorUNF ALL ENDS
NSN4730-00-124-2332
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 64A90C263-2 · 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: BOSS GASKET SEAL ALL ENDS
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
LEG LENGTH: 0.484 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.500 INCHES ALL ENDS IN
•
THREAD CLASS: 2B ALL ENDS
•
MATERIAL: ALUMINUM ALLOY BODY
•
QUICK DISCONNECT METHOD: PUSH-PULL ALL ENDS
TECHNICAL CHARACTERISTICS
CONNECTION STYLEBOSS GASKET SEAL ALL ENDS
STYLE DESIGNATORMALE COUPLING HALF
OVERALL LENGTH1.812 INCHES NOMINAL IN
LEG LENGTH0.484 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.500 INCHES ALL ENDS IN
THREAD CLASS2B ALL ENDS
MATERIALALUMINUM ALLOY BODY
QUICK DISCONNECT METHODPUSH-PULL ALL ENDS
THREAD SERIES DESIGNATORUNF 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 1
YN30AB4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 64A90C263-2?
64A90C263-2 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 64A90C263-2?
There is 1 known substitute for 64A90C263-2: YN30AB4. Substitute compatibility should be verified for your specific system.
What is the NSN for 64A90C263-2?
64A90C263-2 is cataloged in the U.S. Government catalog under NSN 4730-00-124-2332. 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.