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 6685-00-901-8712
NSN 2925-00-402-5582
NSN 5920-01-464-3863
NSN 6145-01-525-7006
NSN 5985-01-572-7972
NSN 6610-00-345-3440
NSN 5905-01-109-2312
NSN 5925-01-329-5890
NSN 5950-01-372-8092
NSN 5835-00-863-0959
NSN 5945-01-383-2693
NSN 6130-00-420-1248