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PartsTable / COMPONENT / 1451P
1451P ✓ 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 diameter: 3.900 INCHES NOMINAL IN, material: ALUMINUM ALLOY, overall_height: 4.187 INCHES NOMINAL IN, pinhole_diameter: 1.2500 INCHES NOMINAL IN, ring_groove_width: 0.0937 INCHES NOMINAL FIRST RING IN, distance_from_pin_hole_center_to_extreme_top: 2.125 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 4320-00-398-8698, 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
1451P
NSN: 4320-00-398-8698
FSC: 4320
CAGE: 0UBG9 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DIV EPD (USA)
SPECIFICATIONS
diameter3.900 INCHES NOMINAL IN
materialALUMINUM ALLOY
overall_height4.187 INCHES NOMINAL IN
pinhole_diameter1.2500 INCHES NOMINAL IN
ring_groove_width0.0937 INCHES NOMINAL FIRST RING IN
ring_groove_quantity5
distance_from_pin_hole_center_to_extreme_top2.125 INCHES NOMINAL IN
NSN4320-00-398-8698
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PISTON,INTERNAL COMBUSTION ENGIN TITLE COMPONENT PN 1451P MFR PISTON,INTERNAL COMBUS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
1451PInterchangeable
interchangeable cross-reference
interchangeable
313879Interchangeable
interchangeable cross-reference
interchangeable
SL5740PC18Interchangeable
Same NIIN cross-reference
interchangeable
DX85972PC18Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1451P?
1451P is a PISTON,INTERNAL COMBUSTION ENGIN.
What parts can replace 1451P?
There are 4 known substitutes for 1451P: 1451P, 313879, SL5740PC18 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1451P?
1451P is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-00-398-8698. 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