5310-00-187-7067 (1908)
NSN 5310-00-187-7067 (NIIN 00-187-7067) is a lock washer in Federal Supply Class 5310, Nuts And Washers — a washer, usually round, with a centrally-located hole. Manufacturer part number 1908 (Itw Shakeproof Automotive Products, CAGE 78189); also referenced as 820B (Microdot IncEverlock Chicago Div).
NIIN assigned January 1963; DEMIL A (none required). Supersedes 5310-00-654-2213 (1963); related NSN 5310-00-019-0670.