The LOCK ASSY UPPER is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4520-01-449-0687, 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
566-644315-AY98
NSN:4520-01-449-0687 FSC:4520 — Space and Water Heating Equipment CAGE:53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
Part Number
566-644315-AY98
NSN
4520-01-449-0687
COMPONENT DIAGRAM
OTHER ITEMS IN FSC 4520 — Space and Water Heating Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
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FREQUENTLY ASKED QUESTIONS
What is 566-644315-AY98?
566-644315-AY98 is a LOCK ASSY UPPER.
What parts can replace 566-644315-AY98?
There is 1 known substitute for 566-644315-AY98: 566-6404315-AY9 8. Substitute compatibility should be verified for your specific system.
What is the NSN for 566-644315-AY98?
566-644315-AY98 is cataloged in the U.S. Government catalog under NSN 4520-01-449-0687. This indicates validated use in U.S. government and defense supply chains.
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