PartsTable
Technical Data Sheet
8457631-1 ✓ 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 HOSE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, connection_type: UNTHREADED EXTERNAL HOSE SECOND END, connection_style: BARBED OR BEADED (HOSE) SECOND END, surface_treatment: ZINC OVERALL, nominal_thread_size: 0.500 INCHES FIRST END IN, nominal_overall_length: 1.750 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 4730-01-233-4985, 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
8457631-1
NSN: 4730-01-233-4985
FSC: 4730
CAGE: 18894 — AIR ARMAMENT CENTER/ EN (USA)
SPECIFICATIONS
materialSTEEL OVERALL
connection_typeUNTHREADED EXTERNAL HOSE SECOND END
connection_styleBARBED OR BEADED (HOSE) SECOND END
surface_treatmentZINC OVERALL
nominal_thread_size0.500 INCHES FIRST END IN
nominal_overall_length1.750 INCHES IN
media_for_which_designedAIR SINGLE RESPONSE
thread_series_designatorNPT FIRST END
nominal_inside_diameter_hose_accommodated0.750 INCHES SECOND END IN
NSN4730-01-233-4985
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 8457631-1 · 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
CONNECTION TYPE: UNTHREADED EXTERNAL HOSE SECOND END
THREAD SERIES DESIGNATOR: NPT FIRST END
SURFACE TREATMENT: ZINC OVERALL
CONNECTION STYLE: PLAIN (PIPE) FIRST END
MATERIAL: STEEL OVERALL
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 0.750 INCHES SECOND END IN
NOMINAL OVERALL LENGTH: 1.750 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPEUNTHREADED EXTERNAL HOSE SECOND END
THREAD SERIES DESIGNATORNPT FIRST END
SURFACE TREATMENTZINC OVERALL
CONNECTION STYLEPLAIN (PIPE) FIRST END
MATERIALSTEEL OVERALL
CONNECTION STYLEBARBED OR BEADED (HOSE) SECOND END
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.750 INCHES SECOND END IN
NOMINAL OVERALL LENGTH1.750 INCHES IN
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
NOMINAL THREAD SIZE0.500 INCHES FIRST END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
B238Interchangeable
interchangeable cross-reference
interchangeable
M31Interchangeable
interchangeable cross-reference
interchangeable
7036150Interchangeable
interchangeable cross-reference
interchangeable
MC263Interchangeable
interchangeable cross-reference
interchangeable
8047Interchangeable
interchangeable cross-reference
interchangeable
K5394Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8457631-1?
8457631-1 is a ADAPTER,STRAIGHT,PIPE TO HOSE.
What parts can replace 8457631-1?
There are 20 known substitutes for 8457631-1: B238, M31, 7036150 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8457631-1?
8457631-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-233-4985. This indicates validated use in U.S. government and defense supply chains.
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