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 6685-00-295-0824
NSN 6620-01-382-1206
NSN 5996-01-347-7949
NSN 6220-00-117-4547
NSN 6145-01-280-8067
NSN 6150-01-177-5115
NSN 6135-01-434-1790
NSN 5925-01-467-9910
NSN 6150-01-115-2276
NSN 6320-01-081-7748
NSN 6220-01-464-3618
NSN 5835-00-564-0057