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Technical Data Sheet
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43137AX ✓ 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 PLUG,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_type: SOLID, head_type: SOLID, core_depth: 0.475 INCHES NOMINAL IN, reducer_type: CONCENTRIC, thread_class: 3A ALL ENDS A. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-842-7841, 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
43137AX
NSN: 4730-00-842-7841
FSC: 4730
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_typeSOLID
head_typeSOLID
core_depth0.475 INCHES NOMINAL IN
reducer_typeCONCENTRIC
thread_class3A ALL ENDS A
exterior_colorGRAY/GREY OVERALL
drive_end_styleRAISED SQUARE
connection_stylePLAIN
special_featuresBRASS PLUG FOR INTERNAL 3/4 INCH PIPE THREADS IN
thread_directionRIGHT-HAND INTERNAL
features_providedTHREAD RELIEF
NSN4730-00-842-7841
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 43137AX · 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 12
9151255Interchangeable
interchangeable cross-reference
interchangeable
444-6-2-6Interchangeable
interchangeable cross-reference
interchangeable
444705Interchangeable
interchangeable cross-reference
interchangeable
ESP-M-2.121-PPInterchangeable
interchangeable cross-reference
interchangeable
3622447C1Interchangeable
interchangeable cross-reference
interchangeable
20990R1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 43137AX?
43137AX is a PLUG,PIPE.
What parts can replace 43137AX?
There are 12 known substitutes for 43137AX: 9151255, 444-6-2-6, 444705 and 9 more. Substitute compatibility should be verified for your specific system.
Is 43137AX still available?
43137AX is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026