5310-00-143-6097 (64A98B201-3)
NSN 5310-00-143-6097 (NIIN 00-143-6097) is a lock washer in Federal Supply Class 5310, Nuts And Washers — a washer, usually round, with a centrally-located hole. Manufacturer part number 64A98B201-3 (Navair And Navsea Managed Original, CAGE 10001).
NIIN assigned September 1968; DEMIL A (none required); ESD/EMI-sensitive; unit of issue EA (each), $1.33 gov standard price; ships at 0.2 lb / 0.0006 cu ft.