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PartsTable / COMPONENT / A257-1
A257-1 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The IMPELLER,PUMP,CENTRIFUGAL is a the manufacturer industrial component. Key specifications include end_item_identification: SNAP-ON NO. A257 HEAVY DUTY BUSHING DRIVER SET, general_characteristics_item_description: STEEL; 8 IN.

LG; 1/2-20 MTG THREADS; KNURLED GRIP 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 5120-01-297-7910, 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
A257-1
NSN: 5120-01-297-7910
FSC: 5120
CAGE: 55719 — IDSC HOLDINGS LLC DIV SNAP-ON INDUSTRIAL, A DIV. OF IDSC HOLDINGS , LLC (USA)
SPECIFICATIONS
end_item_identificationSNAP-ON NO. A257 HEAVY DUTY BUSHING DRIVER SET
general_characteristics_item_descriptionSTEEL; 8 IN. LG; 1/2-20 MTG THREADS; KNURLED GRIP IN
NSN5120-01-297-7910
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available IMPELLER,PUMP,CENTRIFUGAL TITLE COMPONENT PN A257-1 MFR IMPELLER,PUMP,CENTRIFU
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL; 8 IN. LG; 1/2-20 MTG THREADS; KNURLED GRIP IN
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONSNAP-ON NO. A257 HEAVY DUTY BUSHING DRIVER SET
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL; 8 IN. LG; 1/2-20 MTG THREADS; KNURLED GRIP IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
A1588-3-875Interchangeable
interchangeable cross-reference
interchangeable
A1588Interchangeable
interchangeable cross-reference
interchangeable
91904Interchangeable
interchangeable cross-reference
interchangeable
23374Interchangeable
interchangeable cross-reference
interchangeable
71351Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-14652BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A257-1?
A257-1 is a IMPELLER,PUMP,CENTRIFUGAL.
What parts can replace A257-1?
There are 8 known substitutes for A257-1: A1588-3-875, A1588, 91904 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A257-1?
A257-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-01-297-7910. 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