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 5975-01-648-0138
NSN 7035-00-205-1932
NSN 5985-01-316-2007
NSN 5950-01-211-0138
NSN 5855-01-495-2670
NSN 4140-00-088-3644
NSN 2925-00-265-7539
NSN 6645-01-133-2801
NSN 6650-01-529-4601
NSN 5925-01-044-0576
NSN 5996-01-353-1596
NSN 5965-00-079-2360