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6304521-4 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

6304521-4: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include leg_length: 0.740 INCHES NOMINAL IN, seat_angle: 37.0 DEGREES, overall_length: 1.500 INCHES NOMINAL IN, special_features: THREAD SERIES DESIGNATOR: SAE ALL ENDS, style_designator: MALE COUPLING HALF, features_provided: SELF-SEALING. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-516-7712, 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
6304521-4
NSN: 4730-01-516-7712
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 70433 — APPLETON MARINE INC (USA)
SPECIFICATIONS
leg_length0.740 INCHES NOMINAL IN
seat_angle37.0 DEGREES
overall_length1.500 INCHES NOMINAL IN
special_featuresTHREAD SERIES DESIGNATOR: SAE ALL ENDS
style_designatorMALE COUPLING HALF
features_providedSELF-SEALING
end_item_identificationABLTS HYDRAULIC ASSEMBLY
mating_end_identificationSNAP-TITE SVHN6-6EM
NSN4730-01-516-7712
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6304521-4 · 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
•
MATING END IDENTIFICATION: SNAP-TITE SVHN6-6EM
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
LEG LENGTH: 0.740 INCHES NOMINAL IN
•
FEATURES PROVIDED: SELF-SEALING
•
SEAT ANGLE: 37.0 DEGREES
TECHNICAL CHARACTERISTICS
MATING END IDENTIFICATIONSNAP-TITE SVHN6-6EM
STYLE DESIGNATORMALE COUPLING HALF
OVERALL LENGTH1.500 INCHES NOMINAL IN
LEG LENGTH0.740 INCHES NOMINAL IN
FEATURES PROVIDEDSELF-SEALING
SEAT ANGLE37.0 DEGREES
SPECIAL FEATURESTHREAD SERIES DESIGNATOR: SAE ALL ENDS
END ITEM IDENTIFICATIONABLTS HYDRAULIC ASSEMBLY
SUBSTITUTES & CROSS-REFERENCES 2
SVHC6-6EMSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
6304521Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 6304521-4?
6304521-4 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 6304521-4?
There are 2 known substitutes for 6304521-4: SVHC6-6EM, 6304521. Substitute compatibility should be verified for your specific system.
What is the NSN for 6304521-4?
6304521-4 is cataloged in the U.S. Government catalog under NSN 4730-01-516-7712. 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.