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Technical Data Sheet
PartsTable / COMPONENT / 365957
365957 ✓ 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 COUPLING,BELLOWS is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, seat_angle: 37.0 DEGREES ALL ENDS, thread_class: 3A ALL ENDS A, connection_style: FLARED (TUBE) ALL ENDS, style_designator: FLARED W/ CENTER WRENCHING FACILITY, surface_treatment: PASSIVATE OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-142-2075, 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
365957
NSN: 4730-00-142-2075
FSC: 4730
CAGE: 06848 — HONEYWELL INTERNATIONAL INC DIV AEROSPACE-SOUTH BEND (BENDIX DR) (USA)
SPECIFICATIONS
materialSTEEL OVERALL
seat_angle37.0 DEGREES ALL ENDS
thread_class3A ALL ENDS A
connection_styleFLARED (TUBE) ALL ENDS
style_designatorFLARED W/ CENTER WRENCHING FACILITY
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.500 INCHES ALL ENDS IN
nominal_overall_length1.250 INCHES IN
thread_series_designatorUNF ALL ENDS
nominal_outside_diameter_tube_accommodated0.313 INCHES ALL ENDS IN
NSN4730-00-142-2075
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 365957 · 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
•
MATERIAL: STEEL OVERALL
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
STYLE DESIGNATOR: FLARED W/ CENTER WRENCHING FACILITY
•
CONNECTION STYLE: FLARED (TUBE) ALL ENDS
•
THREAD SERIES DESIGNATOR: UNF ALL ENDS
•
THREAD CLASS: 3A ALL ENDS A
•
SEAT ANGLE: 37.0 DEGREES ALL ENDS
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.313 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
STYLE DESIGNATORFLARED W/ CENTER WRENCHING FACILITY
CONNECTION STYLEFLARED (TUBE) ALL ENDS
THREAD SERIES DESIGNATORUNF ALL ENDS
THREAD CLASS3A ALL ENDS A
SEAT ANGLE37.0 DEGREES ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.313 INCHES ALL ENDS IN
NOMINAL OVERALL LENGTH1.250 INCHES IN
NOMINAL THREAD SIZE0.500 INCHES ALL ENDS IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
171010Interchangeable
interchangeable cross-reference
interchangeable
SP-3P29Interchangeable
interchangeable cross-reference
interchangeable
1882335Interchangeable
interchangeable cross-reference
interchangeable
17121Interchangeable
interchangeable cross-reference
interchangeable
EDP 53050Interchangeable
interchangeable cross-reference
interchangeable
823AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 365957?
365957 is a COUPLING,BELLOWS.
What parts can replace 365957?
There are 14 known substitutes for 365957: 171010, SP-3P29, 1882335 and 11 more. Substitute compatibility should be verified for your specific system.
Is 365957 still available?
365957 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026