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504349 ✓ 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

SLEEVE,COMPRESSION,TUBE-HOSE FIT. Key specifications include material: STEEL CORROSION RESISTING OVERALL, first_end_style: SQUARE, pin_overall_length: 0.600 INCHES NOMINAL IN, pin_overall_diameter: 0.1245 INCHES NOMINAL IN, material_document_and_classification: AMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL, second_end_relationship_with_first_end: IDENTICAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-3214, 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
504349
NSN: 4730-00-278-3214
FSC: 4730
CAGE: 21450 — ARMY WEAPONS COMMAND ATTN AMSWE-REE-S (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
first_end_styleSQUARE
pin_overall_length0.600 INCHES NOMINAL IN
pin_overall_diameter0.1245 INCHES NOMINAL IN
material_document_and_classificationAMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
second_end_relationship_with_first_endIDENTICAL
NSN4730-00-278-3214
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 504349 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
J246Interchangeable
interchangeable cross-reference
interchangeable
972906R91Interchangeable
interchangeable cross-reference
interchangeable
62AB-10Interchangeable
interchangeable cross-reference
interchangeable
205418Interchangeable
interchangeable cross-reference
interchangeable
BB9168Interchangeable
interchangeable cross-reference
interchangeable
10-12 120102BAInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 504349?
504349 is a SLEEVE,COMPRESSION,TUBE-HOSE FIT.
What parts can replace 504349?
There are 26 known substitutes for 504349: J246, 972906R91, 62AB-10 and 23 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 504349?
504349 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-3214. 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