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A431 ✓ 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

ROLLER,GOVERNOR WEIGHT,STEAM TUR. Key specifications include part_name_assigned_by_controlling_agency: OPTICAL CLEANING KIT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2825-00-056-2408, 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
A431
NSN: 2825-00-056-2408
FSC: 2825
CAGE: 82328 — DRESSER RAND CO TERRY CORP STEAM TURBINE MOTOR AND GENERATOR CO A JOINT VENTURE (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyOPTICAL CLEANING KIT
NSN2825-00-056-2408
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ROLLER,GOVERNOR WEIGHT,STEAM TUR TITLE COMPONENT PN A431 MFR ROLLER,GOVERNOR WEIGHT
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL,MIL-S-890,CLASS C
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL,MIL-S-890,CLASS C
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
A431Interchangeable
interchangeable cross-reference
interchangeable
13623Interchangeable
interchangeable cross-reference
interchangeable
451487Interchangeable
interchangeable cross-reference
interchangeable
H4171M2BInterchangeable
interchangeable cross-reference
interchangeable
509015Interchangeable
interchangeable cross-reference
interchangeable
4171M2BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A431?
A431 is a ROLLER,GOVERNOR WEIGHT,STEAM TUR.
What parts can replace A431?
There are 12 known substitutes for A431: A431, 13623, 451487 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A431?
A431 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2825-00-056-2408. 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