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12339984 ✓ 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,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, control_type: LOCAL, overall_gain: 30.0 DECIBELS AND 63.0 DECIBELS, overall_width: 5.594 INCHES NOMINAL IN, inclosure_type: ENCASED, overall_height: 1.500 INCHES NOMINAL 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 4730-00-897-5497, 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
12339984
NSN: 4730-00-897-5497
FSC: 4730
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
control_typeLOCAL
overall_gain30.0 DECIBELS AND 63.0 DECIBELS
overall_width5.594 INCHES NOMINAL IN
inclosure_typeENCASED
overall_height1.500 INCHES NOMINAL IN
overall_length6.000 INCHES NOMINAL IN
connection_typeDUAK PANEL JACK BOTTOM
connection_stylePLAIN (PIPE) ALL ENDS
special_featuresITEM RATED TO OPERATE AT MINUS 48.0VDC. ALSO VDC
style_designatorGROOVED BOTH ENDS
basic_shape_styleRECTANGULAR OR SQUARE
NSN4730-00-897-5497
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 12339984 · 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 17
21204Interchangeable
interchangeable cross-reference
interchangeable
131-21204Interchangeable
interchangeable cross-reference
interchangeable
129BInterchangeable
interchangeable cross-reference
interchangeable
21555Interchangeable
interchangeable cross-reference
interchangeable
812-35Interchangeable
interchangeable cross-reference
interchangeable
9119C4001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12339984?
12339984 is a COUPLING,PIPE.
What parts can replace 12339984?
There are 17 known substitutes for 12339984: 21204, 131-21204, 129B and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12339984?
12339984 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-897-5497. 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