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 5910-01-327-6774
NSN 6685-01-474-4949
NSN 5915-01-621-5104
NSN 5910-01-592-2746
NSN 5965-01-369-4101
NSN 7035-00-919-3381
NSN 5855-01-512-1926
NSN 5905-01-414-5543
NSN 2925-01-327-3069
NSN 7035-00-166-0339
NSN 6220-01-067-8142
NSN 5960-01-387-8467