5310-01-213-4841 (4702-4)
NSN 5310-01-213-4841 (NIIN 01-213-4841) 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 4702-4 (Pdi Ground Support Systems, Inc., CAGE 0W357).
Key specs: case-hardened; full characteristics table below. NIIN assigned July 1985; DEMIL A (none required); unit of issue EA (each), $27.83 gov standard price.