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Technical Data Sheet
PartsTable / COMPONENT / 6403-NWO-6
6403-NWO-6 ✓ 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: STEEL OVERALL, thread_class: 2A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS, style_designator: CENTER WRENCHING FACILITY W/ THREADED RELIEF, nominal_thread_size: 0.562 INCHES ALL ENDS 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 4730-01-436-0956, 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
6403-NWO-6
NSN: 4730-01-436-0956
FSC: 4730
CAGE: 0S1H5 — TOMPKINS INDUSTRIES INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_class2A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleEXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS
style_designatorCENTER WRENCHING FACILITY W/ THREADED RELIEF
nominal_thread_size0.562 INCHES ALL ENDS IN
nominal_overall_length1.410 INCHES IN
end_item_identification1740-01-258-3231,AIRCRAFT C-17A SUPPORT EQUIPMENT. A
thread_series_designatorUNF ALL ENDS
furnished_items_and_quantity1 PREFORMED PACKING
nominal_outside_diameter_tube_accommodated0.375 INCHES ALL ENDS IN
NSN4730-01-436-0956
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6403-NWO-6 · 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
KEY FEATURES
•
NOMINAL THREAD SIZE: 0.562 INCHES ALL ENDS IN
•
THREAD SERIES DESIGNATOR: UNF ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.410 INCHES IN
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.375 INCHES ALL ENDS IN
•
CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: CENTER WRENCHING FACILITY W/ THREADED RELIEF
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.562 INCHES ALL ENDS IN
THREAD SERIES DESIGNATORUNF ALL ENDS
END ITEM IDENTIFICATION1740-01-258-3231,AIRCRAFT C-17A SUPPORT EQUIPMENT. A
NOMINAL OVERALL LENGTH1.410 INCHES IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES ALL ENDS IN
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS
MATERIALSTEEL OVERALL
STYLE DESIGNATORCENTER WRENCHING FACILITY W/ THREADED RELIEF
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
FURNISHED ITEMS AND QUANTITY1 PREFORMED PACKING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
058-010-3195Interchangeable
interchangeable cross-reference
interchangeable
5039Interchangeable
interchangeable cross-reference
interchangeable
2230-8Interchangeable
interchangeable cross-reference
interchangeable
SCB69522-1Interchangeable
interchangeable cross-reference
interchangeable
50391Interchangeable
interchangeable cross-reference
interchangeable
050393Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6403-NWO-6?
6403-NWO-6 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace 6403-NWO-6?
There are 14 known substitutes for 6403-NWO-6: 058-010-3195, 5039, 2230-8 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6403-NWO-6?
6403-NWO-6 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-436-0956. 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