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J440 ✓ 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 COIL,RADIO FREQUENCY is a the manufacturer industrial component. Key specifications include material: STEEL, overall_length: 0.630 INCHES NOMINAL IN, overall_diameter: 1.296 INCHES NOMINAL IN, unpackaged_unit_weight: 1.0 POUNDS LBS, end_item_identification: DIE GRINDER, criticality_code_justification: FEAT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-416-5658, 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
J440
NSN: 4730-01-416-5658
FSC: 4730
CAGE: 70847 — BAND-IT-IDEX INC UNIT OF IDEX CORP (USA)
SPECIFICATIONS
materialSTEEL
overall_length0.630 INCHES NOMINAL IN
overall_diameter1.296 INCHES NOMINAL IN
unpackaged_unit_weight1.0 POUNDS LBS
end_item_identificationDIE GRINDER
criticality_code_justificationFEAT
NSN4730-01-416-5658
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: J440 · 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
•
CRITICALITY CODE JUSTIFICATION: FEAT
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONMK 3 MOD 0 LIGHT WEIGHT DIVE SYS
SPECIAL FEATURESUNDERWATER LIFE SUPPORT IAW NAVSEA INSTRUCTION 10560.2B
CRITICALITY CODE JUSTIFICATIONFEAT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
9749Interchangeable
interchangeable cross-reference
interchangeable
J440Interchangeable
interchangeable cross-reference
interchangeable
6817107-1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is J440?
J440 is a COIL,RADIO FREQUENCY.
What parts can replace J440?
There are 3 known substitutes for J440: 9749, J440, 6817107-1. Substitute compatibility should be verified for your specific system.
What is the NSN for J440?
J440 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-416-5658. 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