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 5960-01-444-2205
NSN 6685-00-525-8483
NSN 5975-00-470-2320
NSN 6645-00-868-1246
NSN 5996-01-486-1886
NSN 7035-01-247-4399
NSN 6240-01-420-7304
NSN 7035-01-459-8268
NSN 5965-01-107-8549
NSN 6135-01-334-3935
NSN 5965-01-411-4767
NSN 6610-01-127-0724