Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW
The RING,RETAINING 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 5325-01-259-6218, 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 21301 SEQUENCE 63?
21301 SEQUENCE 63 is a RING,RETAINING.
What parts can replace 21301 SEQUENCE 63?
There are 6 known substitutes for 21301 SEQUENCE 63: 417J, 26C12, 11A8299 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21301 SEQUENCE 63?
21301 SEQUENCE 63 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-01-259-6218. This indicates validated use in U.S. government and defense supply chains.
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