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6432021 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

6432021: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include exterior_color: BROWN OR GREEN, overall_length: 4.870 INCHES NOMINAL IN, special_features: THIS IS A 2 INCH UNISEX COUPLINGS ON 1 END AND A QUICK DISCONNECT COUPLING ON THE OTHER. IN, maximum_operating_temp: 155.0 FAHRENHEIT SINGLE RESPONSE DEGF, end_item_identification: 4930-01-517-7009.

This part is cataloged in the U.S. Government catalog under NSN 4730-01-543-5641, 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
6432021
NSN: 4730-01-543-5641
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0DT23 — EATON CORPORATION DBA EATON INOAC (USA)
SPECIFICATIONS
exterior_colorBROWN OR GREEN
overall_length4.870 INCHES NOMINAL IN
special_featuresTHIS IS A 2 INCH UNISEX COUPLINGS ON 1 END AND A QUICK DISCONNECT COUPLING ON THE OTHER. IN
maximum_operating_temp155.0 FAHRENHEIT SINGLE RESPONSE DEGF
end_item_identification4930-01-517-7009
NSN4730-01-543-5641
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6432021 · 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
•
EXTERIOR COLOR: BROWN OR GREEN
•
MAXIMUM OPERATING TEMP: 155.0 FAHRENHEIT SINGLE RESPONSE DEGF
TECHNICAL CHARACTERISTICS
OVERALL LENGTH4.870 INCHES NOMINAL IN
EXTERIOR COLORBROWN OR GREEN
MAXIMUM OPERATING TEMP155.0 FAHRENHEIT SINGLE RESPONSE DEGF
SPECIAL FEATURESTHIS IS A 2 INCH UNISEX COUPLINGS ON 1 END AND A QUICK DISCONNECT COUPLING ON THE OTHER. IN
END ITEM IDENTIFICATION4930-01-517-7009
SUBSTITUTES & CROSS-REFERENCES 1
64020HReference 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 6432021?
6432021 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 6432021?
There is 1 known substitute for 6432021: 64020H. Substitute compatibility should be verified for your specific system.
What is the NSN for 6432021?
6432021 is cataloged in the U.S. Government catalog under NSN 4730-01-543-5641. 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.