Heat treated
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 5920-01-022-7507
NSN 6685-00-100-4753
NSN 5910-00-552-1983
NSN 5915-01-206-1208
NSN 6150-01-392-7346
NSN 6645-01-254-0490
NSN 6320-01-465-2028
NSN 4140-00-517-7902
NSN 5985-00-292-9206
NSN 5925-00-249-1287
NSN 5895-00-359-3834
NSN 5895-01-071-7718