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W-1431CP ✓ 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 ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, connection_type: THREADED EXTERNAL PIPE SECOND END, connection_style: PLAIN (TUBE) FIRST END, nominal_thread_size: 0.500 INCHES SECOND END IN, nominal_overall_length: 1.375 INCHES IN, thread_series_designator: NPT SECOND END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-256-8556, 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
W-1431CP
NSN: 4730-01-256-8556
FSC: 4730
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
connection_typeTHREADED EXTERNAL PIPE SECOND END
connection_stylePLAIN (TUBE) FIRST END
nominal_thread_size0.500 INCHES SECOND END IN
nominal_overall_length1.375 INCHES IN
thread_series_designatorNPT SECOND END
nominal_outside_diameter_tube_accommodated0.625 INCHES FIRST END IN
tubing_wall_nominal_thickness_for_which_designed0.035 INCHES FIRST END IN
NSN4730-01-256-8556
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: W-1431CP · 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 4
104-1/2Interchangeable
interchangeable cross-reference
interchangeable
817332-309Interchangeable
interchangeable cross-reference
interchangeable
9747907-4Interchangeable
interchangeable cross-reference
interchangeable
W-1431Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is W-1431CP?
W-1431CP is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace W-1431CP?
There are 4 known substitutes for W-1431CP: 104-1/2, 817332-309, 9747907-4 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for W-1431CP?
W-1431CP is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-256-8556. 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