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W-7400 ✓ 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 ELBOW,TUBE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 836 OVERALL, nut_style: SLIP JOINT NUT, flow_angle: 90.0 DEGREES, leg_length: 1.624 INCHES NOMINAL ALL ENDS IN, nut_height: 0.562 INCHES NOMINAL IN, thread_class: 2B. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-408-7902, 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-7400
NSN: 4730-00-408-7902
FSC: 4730
CAGE: 41947 — MUELLER BRASS CO. (USA)
SPECIFICATIONS
materialCOPPER ALLOY 836 OVERALL
nut_styleSLIP JOINT NUT
flow_angle90.0 DEGREES
leg_length1.624 INCHES NOMINAL ALL ENDS IN
nut_height0.562 INCHES NOMINAL IN
thread_class2B
thread_seriesNPSM
connection_typeUNTHREADED INTERNAL TUBE ALL ENDS
furnished_itemsSLIP JOINT WASHER AND FRICTION RING
connection_styleSOCKET (TUBE) ALL ENDS
style_designatorTHREADED AND PLAIN
thread_directionRIGHT-HAND
NSN4730-00-408-7902
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: W-7400 · 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 15
704501Interchangeable
interchangeable cross-reference
interchangeable
10673265Interchangeable
interchangeable cross-reference
interchangeable
SEEPIDInterchangeable
interchangeable cross-reference
interchangeable
B16.23Interchangeable
interchangeable cross-reference
interchangeable
SEE ITEM DESCRIPTIONInterchangeable
interchangeable cross-reference
interchangeable
8-633Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is W-7400?
W-7400 is a ELBOW,TUBE.
What parts can replace W-7400?
There are 15 known substitutes for W-7400: 704501, 10673265, SEEPID and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for W-7400?
W-7400 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-408-7902. 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