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PartsTable / COMPONENT / 63AX 51408
63AX 51408 ✓ 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 ADAPTER,STRAIGHT,HOSE TO BOSS is a the manufacturer industrial component. Key specifications include special_features: 5/8" X 1/2" NPT, end_item_identification: 2320-01-529-2251 TRUCK, BOMB SERVICE, part_name_assigned_by_controlling_agency: CONNECTOR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-559-8933, 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
63AX 51408
NSN: 4730-01-559-8933
FSC: 4730
CAGE: 89619 — MACK TRUCKS, INC. DBA MACUNGIE OPERATIONS DIV LEHIGH VALLEY OPERATIONS (USA)
SPECIFICATIONS
special_features5/8" X 1/2" NPT
end_item_identification2320-01-529-2251 TRUCK, BOMB SERVICE
part_name_assigned_by_controlling_agencyCONNECTOR
NSN4730-01-559-8933
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 63AX 51408 · 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
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURES5/8" X 1/2" NPT
PART NAME ASSIGNED BY CONTROLLING AGENCYCONNECTOR
END ITEM IDENTIFICATION2320-01-529-2251 TRUCK, BOMB SERVICE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
J2454Interchangeable
interchangeable cross-reference
interchangeable
10001129Interchangeable
interchangeable cross-reference
interchangeable
BTC-UNI05Interchangeable
interchangeable cross-reference
interchangeable
PP-8444/UInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 63AX 51408?
63AX 51408 is a ADAPTER,STRAIGHT,HOSE TO BOSS.
What parts can replace 63AX 51408?
There are 4 known substitutes for 63AX 51408: J2454, 10001129, BTC-UNI05 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 63AX 51408?
63AX 51408 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-559-8933. 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