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6145544 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

6145544: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING BODY, leg_length: 0.820 INCHES NOMINAL IN, thread_class: 3B ALL ENDS, overall_length: 2.050 INCHES NOMINAL IN, connection_type: THREADED INTERNAL TUBE FIRST FLUID END CONNECTION, connection_style: DOUBLE COMPRESSION ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-308-8300, 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
6145544
NSN: 4730-01-308-8300
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING BODY
leg_length0.820 INCHES NOMINAL IN
thread_class3B ALL ENDS
overall_length2.050 INCHES NOMINAL IN
connection_typeTHREADED INTERNAL TUBE FIRST FLUID END CONNECTION
connection_styleDOUBLE COMPRESSION ALL ENDS
special_featuresFLUID END WITH FLANGE; SIDE FLANGE HAS 6 HOLES,0.259IN DIA BY 0.230IN MAX DRILLED DEPTH; QUICK DISCONNECT END HAS BULKHEAD-THREADED 1.750-16 UNJF-3A-1.170 INCH FROM END A
style_designatorMALE COUPLING HALF
surface_treatmentPASSIVATE BODY
nominal_thread_size1.500 INCHES ALL ENDS IN
quick_disconnect_methodPUSH-PULL ALL ENDS
thread_series_designatorUNEF ALL ENDS
NSN4730-01-308-8300
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6145544 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35/T1 FED SPEC SINGLE TREATMENT RESPONSE BODY
•
CONNECTION STYLE: DOUBLE COMPRESSION ALL ENDS
•
CONNECTION TYPE: EXTERNAL QUICK DISCONNECT ALL ENDS
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS-5643-17-4 ASSN STD SINGLE MATERIAL RESPONSE BODY
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 1.000 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35/T1 FED SPEC SINGLE TREATMENT RESPONSE BODY
CONNECTION STYLEDOUBLE COMPRESSION ALL ENDS
CONNECTION TYPEEXTERNAL QUICK DISCONNECT ALL ENDS
CONNECTION TYPETHREADED INTERNAL TUBE FIRST FLUID END CONNECTION
STYLE DESIGNATORMALE COUPLING HALF
MATERIAL DOCUMENT AND CLASSIFICATIONAMS-5643-17-4 ASSN STD SINGLE MATERIAL RESPONSE BODY
OVERALL LENGTH2.050 INCHES NOMINAL IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.000 INCHES ALL ENDS IN
QUICK DISCONNECT NOMINAL SIZE1.170 INCHES ALL ENDS IN
LEG LENGTH0.820 INCHES NOMINAL IN
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

No substitute or cross-reference records for this part.

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 6145544?
6145544 is a COUPLING HALF,QUICK DISCONNECT.
What is the NSN for 6145544?
6145544 is cataloged in the U.S. Government catalog under NSN 4730-01-308-8300. 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.