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K8-491 ✓ 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 PISTON,COMPRESSOR is a the manufacturer industrial component. Key specifications include special_features: ROUND BOLT HOLE, mounting_hole_type_and_quantity: 4 PLAIN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4310-00-138-1918, 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
K8-491
NSN: 4310-00-138-1918
FSC: 4310
CAGE: 28953 — RIX INDUSTRIES (USA)
SPECIFICATIONS
special_featuresROUND BOLT HOLE
mounting_hole_type_and_quantity4 PLAIN
NSN4310-00-138-1918
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PISTON,COMPRESSOR TITLE COMPONENT PN K8-491 MFR PISTON,COMPRESSOR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
8491Interchangeable
interchangeable cross-reference
interchangeable
TP8491Interchangeable
interchangeable cross-reference
interchangeable
283550-1181Interchangeable
interchangeable cross-reference
interchangeable
MT691ARN18Interchangeable
interchangeable cross-reference
interchangeable
1D1134Interchangeable
interchangeable cross-reference
interchangeable
3671524Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is K8-491?
K8-491 is a PISTON,COMPRESSOR.
What parts can replace K8-491?
There are 11 known substitutes for K8-491: 8491, TP8491, 283550-1181 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for K8-491?
K8-491 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4310-00-138-1918. 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