2 adjacent corners cut off 45 degrees and 1.968 in. From center
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 5920-01-399-1801
NSN 6620-01-292-5072
NSN 6320-01-512-2031
NSN 5835-01-106-1456
NSN 6685-01-323-9430
NSN 6645-01-351-1154
NSN 5835-00-572-7445
NSN 5950-00-883-9258
NSN 5975-01-394-5954
NSN 6135-00-271-0407
NSN 6220-00-405-5986
NSN 5910-01-137-0062