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510104-12 — COUPLING ASSEMBLY,SELF-SEALING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

510104-12: COUPLING ASSEMBLY,SELF-SEALING.

The COUPLING ASSEMBLY,SELF-SEALING is a the manufacturer industrial component. Key specifications include material: STEEL BODY, overall_length: 5.219 INCHES NOMINAL5.219 INCHES NOMINAL IN, connection_type: THREADED INTERNAL PIPE FIRST QUICK DISCONNECT ENDTHREADED INTERNAL PIPE FIRST QUICK DISCONNECT END, connection_style: PLAIN FIRST QUICK DISCONNECT ENDPLAIN FIRST QUICK DISCONNECT END, first_leg_length: 0.703 INCHES NOMINAL0.703 INCHES NOMINAL IN, style_designator: COUPLING ASSEMBLY. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-335-2372, 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
510104-12
NSN: 4730-00-335-2372
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 01276 — DANFOSS POWER SOLUTIONS II, LLC (USA)
SPECIFICATIONS
materialSTEEL BODY
overall_length5.219 INCHES NOMINAL5.219 INCHES NOMINAL IN
connection_typeTHREADED INTERNAL PIPE FIRST QUICK DISCONNECT ENDTHREADED INTERNAL PIPE FIRST QUICK DISCONNECT END
connection_stylePLAIN FIRST QUICK DISCONNECT ENDPLAIN FIRST QUICK DISCONNECT END
first_leg_length0.703 INCHES NOMINAL0.703 INCHES NOMINAL IN
style_designatorCOUPLING ASSEMBLY
features_providedSELF-SEALINGSELF-SEALING
second_leg_length0.703 INCHES NOMINAL0.703 INCHES NOMINAL IN
surface_treatmentCADMIUM BODY
operating_pressure1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.750 INCHES FIRST QUICK DISCONNECT END0.750 INCHES FIRST QUICK DISCONNECT END IN
maximum_operating_temp121.0 CELSIUS SINGLE RESPONSE121.0 CELSIUS SINGLE RESPONSE DEGC
NSN4730-00-335-2372
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 510104-12 · 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
•
SECOND LEG LENGTH: 0.703 INCHES NOMINAL0.703 INCHES NOMINAL IN
•
CONNECTION STYLE: PLAIN FIRST QUICK DISCONNECT ENDPLAIN FIRST QUICK DISCONNECT END
•
CONNECTION TYPE: THREADED INTERNAL PIPE FIRST QUICK DISCONNECT ENDTHREADED INTERNAL PIPE FIRST QUICK DISCONNECT END
•
STYLE DESIGNATOR: COUPLING ASSEMBLY
•
OPERATING PRESSURE: 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICALIDENTICAL
•
FEATURES PROVIDED: SELF-SEALINGSELF-SEALING
TECHNICAL CHARACTERISTICS
SECOND LEG LENGTH0.703 INCHES NOMINAL0.703 INCHES NOMINAL IN
CONNECTION STYLEPLAIN FIRST QUICK DISCONNECT ENDPLAIN FIRST QUICK DISCONNECT END
CONNECTION TYPETHREADED INTERNAL PIPE FIRST QUICK DISCONNECT ENDTHREADED INTERNAL PIPE FIRST QUICK DISCONNECT END
STYLE DESIGNATORCOUPLING ASSEMBLY
OVERALL LENGTH5.219 INCHES NOMINAL5.219 INCHES NOMINAL IN
OPERATING PRESSURE1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICALIDENTICAL
FEATURES PROVIDEDSELF-SEALINGSELF-SEALING
NOMINAL THREAD SIZE0.750 INCHES FIRST QUICK DISCONNECT END0.750 INCHES FIRST QUICK DISCONNECT END IN
MAXIMUM OPERATING TEMP121.0 CELSIUS SINGLE RESPONSE121.0 CELSIUS SINGLE RESPONSE DEGC
SUBSTITUTES & CROSS-REFERENCES 3
103551R91Reference document
Same NSN cross-reference
Reference document — Secondary reference
8332680Reference document
Same NSN cross-reference
Reference document — Secondary reference
510112Same 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 510104-12?
510104-12 is a COUPLING ASSEMBLY,SELF-SEALING.
What parts can replace 510104-12?
There are 3 known substitutes for 510104-12: 103551R91, 8332680, 510112. Substitute compatibility should be verified for your specific system.
What is the NSN for 510104-12?
510104-12 is cataloged in the U.S. Government catalog under NSN 4730-00-335-2372. 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.