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255002D ✓ 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

PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include material: STEEL CORROSION RESISTING OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 4.1250 INCHES NOMINAL IN, keyway_dimension: 0.1875 INCHES NOMINAL INTERNAL KEYWAY WIDTH IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 1.6220 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 4320-00-126-5971, 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
255002D
NSN: 4320-00-126-5971
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_shapeSQUARE ALL CORNERS
overall_length4.1250 INCHES NOMINAL IN
keyway_dimension0.1875 INCHES NOMINAL INTERNAL KEYWAY WIDTH IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter1.6220 INCHES NOMINAL IN
body_outside_diameter2.0660 INCHES NOMINAL IN
NSN4320-00-126-5971
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PISTON,INTERNAL COMBUSTION ENGIN TITLE COMPONENT PN 255002D MFR PISTON,INTERNAL COMBUS
KEY FEATURES
•
BODY INSIDE DIAMETER: 1.6220 INCHES NOMINAL IN
•
KEYWAY DIMENSION: 0.0937 INCHES NOMINAL INTERNAL KEYWAY DEPTH IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
CORNER SHAPE: SQUARE ALL CORNERS
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
BODY OUTSIDE DIAMETER: 2.0660 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
BODY INSIDE DIAMETER1.6220 INCHES NOMINAL IN
OVERALL LENGTH4.1250 INCHES NOMINAL IN
KEYWAY DIMENSION0.0937 INCHES NOMINAL INTERNAL KEYWAY DEPTH IN
MATERIALSTEEL CORROSION RESISTING OVERALL
CORNER SHAPESQUARE ALL CORNERS
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
BODY OUTSIDE DIAMETER2.0660 INCHES NOMINAL IN
KEYWAY DIMENSION0.1875 INCHES NOMINAL INTERNAL KEYWAY WIDTH IN
KEYWAY DIMENSION1.0000 INCHES NOMINAL INTERNAL KEYWAY LENGTH IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
6159FInterchangeable
interchangeable cross-reference
interchangeable
1927PNInterchangeable
interchangeable cross-reference
interchangeable
B41PInterchangeable
interchangeable cross-reference
interchangeable
149PInterchangeable
interchangeable cross-reference
interchangeable
926PInterchangeable
interchangeable cross-reference
interchangeable
L950FInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 255002D?
255002D is a PISTON,INTERNAL COMBUSTION ENGIN.
What parts can replace 255002D?
There are 16 known substitutes for 255002D: 6159F, 1927PN, B41P and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 255002D?
255002D is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-00-126-5971. 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