5340-01-281-7136 (FC277-1)
NSN 5340-01-281-7136 (NIIN 01-281-7136) is a helical compression spring seat in Federal Supply Class 5340, Hardware, Commercial — a circular item, usually having a flat or grooved flange, boss(es), and/or counterbore, designed to accommodate the end of the spring. Manufacturer part number FC277-1 (Lo-Rez Vibration Control Ltd, CAGE 37478).
NIIN assigned June 1988; DEMIL A (none required); unit of issue EA (each), $84.74 gov standard price; ships at 0.6 lb / 0.0152 cu ft.