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 5965-01-525-7513
NSN 5990-01-280-0321
NSN 6645-01-338-9152
NSN 5905-00-789-3032
NSN 6135-01-340-9731
NSN 5855-00-138-2386
NSN 5905-01-345-8206
NSN 5910-01-467-2092
NSN 5996-01-415-1818
NSN 5975-00-254-5124
NSN 5999-01-419-3501
NSN 2925-00-081-3547