An item usually in the form of a ring, designed to fit on the front of an instrument to secure the window material of the instrument. See also bezel,instrument mounting.
NSN 5996-00-971-2283
NSN 6130-00-153-3136
NSN 6220-01-643-6237
NSN 5960-01-481-3722
NSN 5925-00-309-2404
NSN 6220-00-617-9616
NSN 5930-01-491-7437
NSN 5920-01-076-5467
NSN 5905-01-410-7780
NSN 6145-01-411-4757
NSN 2925-01-604-8984
NSN 5960-00-409-9604