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Technical Data Sheet
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JB729 ✓ 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,HOSE is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC GASKET, special_features: DESICCANT NOT INCLUDED, part_name_assigned_by_controlling_agency: NYLON COMPOSITE CONNECTOR W/NEOPRENE GASKET. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-507-7226, 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
JB729
NSN: 4730-01-507-7226
FSC: 4730
CAGE: K7974 — MEL AVIATION LIMITED DIV MEL AVIATION LTD (GBR)
SPECIFICATIONS
materialRUBBER SYNTHETIC GASKET
special_featuresDESICCANT NOT INCLUDED
part_name_assigned_by_controlling_agencyNYLON COMPOSITE CONNECTOR W/NEOPRENE GASKET
NSN4730-01-507-7226
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: JB729 · 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
•
MATERIAL: PLASTIC POLYAMIDE NYLON OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESDESICCANT NOT INCLUDED
MATERIALPLASTIC POLYAMIDE NYLON OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
JB729Interchangeable
interchangeable cross-reference
interchangeable
AA6073Interchangeable
interchangeable cross-reference
interchangeable
17-2432-0231-01Interchangeable
Same NIIN cross-reference
interchangeable
JB-723Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is JB729?
JB729 is a COUPLING,HOSE.
What parts can replace JB729?
There are 4 known substitutes for JB729: JB729, AA6073, 17-2432-0231-01 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for JB729?
JB729 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-507-7226. 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