5310-00-952-0005 (5310009520005)
NSN 5310-00-952-0005 (NIIN 00-952-0005) is a key washer in Federal Supply Class 5310, Nuts And Washers — a washer of nonresilient material usually having two parallel bearing surfaces. Manufacturer part number 5310009520005 (E.C.A Etablissement, CAGE SCY13); also referenced as MS172216 (Military Standards).
NIIN assigned January 1962; DEMIL A (none required); unit of issue EA (each), $2.86 gov standard price; ships at 0.4 lb / 0.0028 cu ft.