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 5925-01-052-7216
NSN 5975-01-227-4441
NSN 6685-01-008-2838
NSN 5925-00-491-2363
NSN 5920-01-206-9947
NSN 5935-01-650-6548
NSN 5925-00-168-1459
NSN 6620-01-209-6282
NSN 6685-00-286-8481
NSN 4140-00-451-8374
NSN 6135-01-205-5965
NSN 6645-01-014-0793