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038581 ✓ 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

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include material: PAPER AND GLUE OVERALL, body_style: STRAIGHT SHAPE, EXTERNAL COUPLING, shell_type: SOLID, design_type: STRAIGHT, thread_class: 2A A, hole_diameter: 0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED 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 4730-01-329-2147, 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
038581
NSN: 4730-01-329-2147
FSC: 4730
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialPAPER AND GLUE OVERALL
body_styleSTRAIGHT SHAPE, EXTERNAL COUPLING
shell_typeSOLID
design_typeSTRAIGHT
thread_class2A A
hole_diameter0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width0.510 INCHES MAXIMUM IN
terminal_typeSOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING
overall_height0.510 INCHES MAXIMUM IN
overall_length0.600 INCHES MAXIMUM IN
shell_materialSTEEL
outside_diameter2.688 INCHES NOMINAL IN
NSN4730-01-329-2147
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 038581 · 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 6
927364Interchangeable
interchangeable cross-reference
interchangeable
38581Interchangeable
interchangeable cross-reference
interchangeable
10-510Interchangeable
interchangeable cross-reference
interchangeable
MIL-C-39012/60Interchangeable
interchangeable cross-reference
interchangeable
MIL-PRF-39012/60Interchangeable
interchangeable cross-reference
interchangeable
MS39012/60-3002Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 038581?
038581 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace 038581?
There are 6 known substitutes for 038581: 927364, 38581, 10-510 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 038581?
038581 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-329-2147. 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