6650-00-936-7910 (6650009367910)
NSN 6650-00-936-7910 (NIIN 00-936-7910) is an optical instrument eyeguard in Federal Supply Class 6650, Optical Instruments, Test Equipment, Components And Accessories — an item externally or internally threaded on one end, designed to be attached to the viewing end of an eyepiece. Manufacturer part number 6650009367910 (E.C.A Etablissement, CAGE SCY13); also referenced as 10084560 (Us Army Aviation And Missile Command).
NIIN assigned February 1970; DEMIL Q (Commerce Control List); export Schedule B 9018.50.0000.