5310-01-466-4892 (60-4592-1)
NSN 5310-01-466-4892 (NIIN 01-466-4892) is a lock washer in Federal Supply Class 5310, Nuts And Washers — a washer, usually round, with a centrally-located hole. Manufacturer part number 60-4592-1 (Grimes Aerospace Company, CAGE 72914); also referenced as LW-180 (Grimes Aerospace Company).
NIIN assigned July 1999; DEMIL A (none required); unit of issue EA (each), $3.96 gov standard price.