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 SPRING 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 5360-00-107-6503, 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.
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FREQUENTLY ASKED QUESTIONS
What is WB21?
WB21 is a SPRING.
What parts can replace WB21?
There are 2 known substitutes for WB21: 988221, M12. Substitute compatibility should be verified for your specific system.
What is the NSN for WB21?
WB21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5360-00-107-6503. This indicates validated use in U.S. government and defense supply chains.
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