Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW
The O-RING is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-166-8341, 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 219-0389?
219-0389 is a O-RING.
What parts can replace 219-0389?
There are 21 known substitutes for 219-0389: RN70M114500300B0100, 131-937, 13046953 and 18 more. Substitute compatibility should be verified for your specific system.
Is 219-0389 still available?
219-0389 is currently cancelled.
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