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Technical Data Sheet
PartsTable / COMPONENT / 6-1-743-2-20
6-1-743-2-20 ✓ 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: ALUMINUM ALLOY OVERALL, connection_type: THREADED EXTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, style_designator: CLOSE, nominal_thread_size: 1.500 INCHES ALL ENDS IN, nominal_overall_length: 4.500 INCHES 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 4730-00-359-5635, 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
6-1-743-2-20
NSN: 4730-00-359-5635
FSC: 4730
CAGE: 81337 — W1D1 NATICK SOLDIER CENTER DBA US ARMY CCDC SOLDIER CENTER DIV COMBAT CAPABILITIES DEVELOPMENT COMMAND - SOLDIER CENTER (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
connection_typeTHREADED EXTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
style_designatorCLOSE
nominal_thread_size1.500 INCHES ALL ENDS IN
nominal_overall_length4.500 INCHES IN
thread_series_designatorNPT ALL ENDS
NSN4730-00-359-5635
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6-1-743-2-20 · 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 OVERALL LENGTH: 4.500 INCHES IN
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
NOMINAL THREAD SIZE: 1.500 INCHES ALL ENDS IN
•
MATERIAL: ALUMINUM ALLOY OVERALL
•
STYLE DESIGNATOR: CLOSE
•
CONNECTION TYPE: THREADED EXTERNAL PIPE ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OVERALL LENGTH4.500 INCHES IN
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
THREAD SERIES DESIGNATORNPT ALL ENDS
NOMINAL THREAD SIZE1.500 INCHES ALL ENDS IN
MATERIALALUMINUM ALLOY OVERALL
STYLE DESIGNATORCLOSE
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
67218Interchangeable
interchangeable cross-reference
interchangeable
175303Interchangeable
interchangeable cross-reference
interchangeable
6061-T6Interchangeable
interchangeable cross-reference
interchangeable
672-18-5Interchangeable
interchangeable cross-reference
interchangeable
672-18GDInterchangeable
interchangeable cross-reference
interchangeable
SM-A-949309-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6-1-743-2-20?
6-1-743-2-20 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace 6-1-743-2-20?
There are 17 known substitutes for 6-1-743-2-20: 67218, 175303, 6061-T6 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6-1-743-2-20?
6-1-743-2-20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-359-5635. 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