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490991 ✓ 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 RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5945-01-118-1159, 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
490991
NSN: 5945-01-118-1159
FSC: 5945
CAGE: 64104 — DRESSER, LLC (USA)
SPECIFICATIONS
Part Number490991
NSN5945-01-118-1159
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RELAY,ELECTROMAGNETIC TITLE COMPONENT PN 490991 MFR RELAY,ELECTROMAGNETIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
1951180Interchangeable
interchangeable cross-reference
interchangeable
1940138Interchangeable
interchangeable cross-reference
interchangeable
491005Interchangeable
interchangeable cross-reference
interchangeable
1875852Interchangeable
interchangeable cross-reference
interchangeable
4911845Interchangeable
Same NIIN cross-reference
interchangeable
1115578Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 490991?
490991 is a RELAY,ELECTROMAGNETIC.
What parts can replace 490991?
There are 8 known substitutes for 490991: 1951180, 1940138, 491005 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 490991?
490991 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5945-01-118-1159. 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