6230-00-859-6554 (JBK-50)
NSN 6230-00-859-6554 (NIIN 00-859-6554) is a hub cover in Federal Supply Class 6230, Electric Portable And Hand Lighting Equipment. Manufacturer part number JBK-50 (Egs Electrical Group Appleton Div, CAGE 03743); also referenced as GRF11 (Crouse-Hinds Co).
NIIN assigned January 1960; DEMIL A (none required); unit of issue EA (each), $12.30 gov standard price; ships at 1.15 lb / 0.0049 cu ft.