5340-01-512-5083 (M700-5057-FL-3W)
NSN 5340-01-512-5083 (NIIN 01-512-5083) is a helical compression spr retainer in Federal Supply Class 5340, Hardware, Commercial — a cylindrical item specifically designed to fit over the end of and completely encase the spring. Manufacturer part number M700-5057-FL-3W; also referenced as 21M-85-2, M700-5057-FL-3W ITEM 8 (Metrex Valve Corp.).
NIIN assigned September 2003; DEMIL A (none required); unit of issue EA (each), $102.56 gov standard price.