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 5905-01-144-2186
NSN 5998-00-079-3553
NSN 7035-01-391-7470
NSN 5975-01-168-1564
NSN 6135-01-164-3561
NSN 6135-01-375-2021
NSN 5855-01-641-7319
NSN 5985-00-480-4694
NSN 6645-00-006-6387
NSN 6240-01-301-8668
NSN 5960-01-416-2544
NSN 5965-01-267-8536