5365-01-059-9981 (1481658-1)
NSN 5365-01-059-9981 (NIIN 01-059-9981) is an instrument retaining ring in Federal Supply Class 5365, Bushings, Rings, Shims, And Spacers — a cylindrical item usually having a flanged aperture designed to hold and mount an instrument in a predetermined position. Manufacturer part number 1481658-1 (Honeywell Intl IncDefense Avionics, CAGE 55972).
NIIN assigned May 1978; DEMIL A (none required).