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 5930-00-900-9807
NSN 5975-00-339-1499
NSN 5975-01-605-1308
NSN 6685-01-217-6292
NSN 6320-00-036-3688
NSN 5915-01-523-6164
NSN 2925-01-212-1040
NSN 5950-00-553-9439
NSN 5950-01-336-4388
NSN 6320-00-593-0379
NSN 6320-01-039-5891
NSN 5930-00-240-0542