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390505-8 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include width: 5.750 INCHES NOMINAL IN, material: RUBBER SYNTHETIC COVER, leg_length: 0.657 INCHES NOMINAL IN, seat_angle: 37.0 DEGREES, bend_radius: 2.750 INCHES NOMINAL IN, body_height: 0.213 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-005-7352, 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
390505-8
NSN: 4730-00-005-7352
FSC: 4730
CAGE: 00624 — EATON AEROQUIP LLC DBA JACKSON NORTH 1 DIV FLUID AND ELECTRICAL DISTRIBUTION (USA)
SPECIFICATIONS
width5.750 INCHES NOMINAL IN
materialRUBBER SYNTHETIC COVER
leg_length0.657 INCHES NOMINAL IN
seat_angle37.0 DEGREES
bend_radius2.750 INCHES NOMINAL IN
body_height0.213 INCHES MAXIMUM IN
outer_radius2.500 INCHES NOMINAL IN
thread_class3A ALL ENDS A
overall_length2.726 INCHES NOMINAL IN
wall_thickness0.187 INCHES NOMINAL IN
working_length13.000 INCHES NOMINAL IN
inside_diameter1.750 INCHES NOMINAL IN
NSN4730-00-005-7352
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 390505-8 · 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: FLARED ALL ENDS
•
QUICK DISCONNECT METHOD: PUSH-LOCK ALL ENDS
•
THREAD CLASS: 3A ALL ENDS A
•
LEG LENGTH: 0.657 INCHES NOMINAL IN
•
MATING END IDENTIFICATION: NAVAL ORDNANCE SYSTEMS COMMAND,COUPLING HALF,QUICK DISCONNECT,PART NO. 2414645
•
FEATURES PROVIDED: SELF-SEALING
•
NOMINAL THREAD SIZE: 0.750 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION STYLEFLARED ALL ENDS
QUICK DISCONNECT METHODPUSH-LOCK ALL ENDS
THREAD CLASS3A ALL ENDS A
OVERALL LENGTH2.726 INCHES NOMINAL IN
LEG LENGTH0.657 INCHES NOMINAL IN
MATING END IDENTIFICATIONNAVAL ORDNANCE SYSTEMS COMMAND,COUPLING HALF,QUICK DISCONNECT,PART NO. 2414645
FEATURES PROVIDEDSELF-SEALING
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS IN
MATERIALALUMINUM ALLOY BODY
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES ALL ENDS IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
3905058Interchangeable
interchangeable cross-reference
interchangeable
3713898Interchangeable
interchangeable cross-reference
interchangeable
259324Interchangeable
interchangeable cross-reference
interchangeable
259324-1Interchangeable
interchangeable cross-reference
interchangeable
252671Interchangeable
interchangeable cross-reference
interchangeable
2414646Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 390505-8?
390505-8 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 390505-8?
There are 6 known substitutes for 390505-8: 3905058, 3713898, 259324 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 390505-8?
390505-8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-005-7352. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026