5310-00-247-4809 (289583)
NSN 5310-00-247-4809 (NIIN 00-247-4809) is a concave washer in Federal Supply Class 5310, Nuts And Washers — a washer which is round with a centrally located hole. Manufacturer part number 289583 (Lds Test And Measurement LLC, CAGE 3SLK7).
NIIN assigned July 1969; DEMIL A (none required); unit of issue EA (each), $0.37 gov standard price; ships at 0.01 lb / 0.001 cu ft.