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19757FX ✓ 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: CHROMIUM ALLOY OVERALL, nut_style: TUBE COUPLING, flow_angle: 90.0 DEGREES, leg_length: 0.47 INCHES NOMINAL SECOND END IN, nut_height: 0.594 INCHES NOMINAL IN, seat_angle: 45.0 DEGREES FIRST 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 4730-01-337-0021, 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
19757FX
NSN: 4730-01-337-0021
FSC: 4730
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialCHROMIUM ALLOY OVERALL
nut_styleTUBE COUPLING
flow_angle90.0 DEGREES
leg_length0.47 INCHES NOMINAL SECOND END IN
nut_height0.594 INCHES NOMINAL IN
seat_angle45.0 DEGREES FIRST END
reducer_typeCONCENTRIC
thread_class2A ALL ENDS A
thread_seriesUNF
nominal_length1.170 INCHES SECOND END IN
connection_typeTHREADED EXTERNAL PIPE SECOND END
connection_stylePLAIN (PIPE) SECOND END
NSN4730-01-337-0021
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 19757FX · 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 7
U1-10CInterchangeable
interchangeable cross-reference
interchangeable
48F5-8X3-8Interchangeable
interchangeable cross-reference
interchangeable
0ME126-9PC92Interchangeable
interchangeable cross-reference
interchangeable
J513Interchangeable
Same NIIN cross-reference
interchangeable
SAE-J513Interchangeable
Same NIIN cross-reference
interchangeable
6-10 010102BAInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 19757FX?
19757FX is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace 19757FX?
There are 7 known substitutes for 19757FX: U1-10C, 48F5-8X3-8, 0ME126-9PC92 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 19757FX?
19757FX is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-337-0021. 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