A piece of transparent material specifically designed to be placed directly in front of a dial or scale to protect it from foreign matter. It is cut to size and may include a frame. It may have an index line or other marking. See also window, observation; and dial, scale.
Classification: Clock or watch glass; glasses for noncorrective spectagles not optically worked; hollow glass spheres and their segments for the mnfctr ofsuch glasses
NSN 6685-01-441-9378
NSN 6685-00-534-3036
NSN 5996-00-536-7617
NSN 5975-01-079-7084
NSN 7035-00-849-5526
NSN 5925-00-780-8620
NSN 4140-01-147-4764
NSN 6240-01-026-1376
NSN 7035-01-132-7209
NSN 5996-00-060-7309
NSN 6145-01-281-7222
NSN 6620-01-147-5615