6920-00-456-5891 (6920004565891)
NSN 6920-00-456-5891 (NIIN 00-456-5891) is a window cover in Federal Supply Class 6920, Armament Training Devices. Manufacturer part number 6920004565891 (E.C.A Etablissement Central Des, CAGE A00AM); also referenced as 10189828 (Northrop Grumman Systems Corporation).
NIIN assigned April 1969; DEMIL B (USML, demil required); ships at 0.53 lb / 0.009 cu ft.