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Technical Data Sheet
257264-1 ✓ 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 SLEEVE,SHAFT,PUMP is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, corner_shape: CHAMFERED INSIDE RIGHT CORNER, overall_length: 3.3750 INCHES NOMINAL IN, keyway_dimension: 3.3750 INCHES NOMINAL INTERNAL KEYWAY LENGTH IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 1.2656 INCHES NOMINAL 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 4320-00-393-3512, 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
257264-1
NSN: 4320-00-393-3512
FSC: 4320
CAGE: 93232 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS WRIGHT ENGINEERED PUMP DIVISION USE CAGE CODE 0UBG9 FOR CATALOGING (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
corner_shapeCHAMFERED INSIDE RIGHT CORNER
overall_length3.3750 INCHES NOMINAL IN
keyway_dimension3.3750 INCHES NOMINAL INTERNAL KEYWAY LENGTH IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter1.2656 INCHES NOMINAL IN
body_outside_diameter1.6875 INCHES NOMINAL IN
NSN4320-00-393-3512
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SLEEVE,SHAFT,PUMP TITLE COMPONENT PN 257264-1 MFR SLEEVE,SHAFT,PUMP
KEY FEATURES
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
CORNER SHAPE: CHAMFERED INSIDE LEFT CORNER
BODY INSIDE DIAMETER: 1.2656 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER: 1.6875 INCHES NOMINAL IN
KEYWAY DIMENSION: 3.3750 INCHES NOMINAL INTERNAL KEYWAY LENGTH IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
CORNER SHAPECHAMFERED INSIDE LEFT CORNER
OVERALL LENGTH3.3750 INCHES NOMINAL IN
BODY INSIDE DIAMETER1.2656 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER1.6875 INCHES NOMINAL IN
KEYWAY DIMENSION3.3750 INCHES NOMINAL INTERNAL KEYWAY LENGTH IN
KEYWAY DIMENSION0.0625 INCHES NOMINAL INTERNAL KEYWAY DEPTH IN
CORNER SHAPECHAMFERED INSIDE RIGHT CORNER
MATERIALSTEEL CORROSION RESISTING OVERALL
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
10178Interchangeable
interchangeable cross-reference
interchangeable
703.001671Interchangeable
interchangeable cross-reference
interchangeable
422860-1Interchangeable
interchangeable cross-reference
interchangeable
39A38Interchangeable
interchangeable cross-reference
interchangeable
8177080Interchangeable
interchangeable cross-reference
interchangeable
A10007Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 257264-1?
257264-1 is a SLEEVE,SHAFT,PUMP.
What parts can replace 257264-1?
There are 22 known substitutes for 257264-1: 10178, 703.001671, 422860-1 and 19 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 257264-1?
257264-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-00-393-3512. This indicates validated use in U.S. government and defense supply chains.
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