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 5915-00-826-9318
NSN 5996-00-977-5908
NSN 6620-01-598-2271
NSN 6220-01-051-0363
NSN 6645-00-385-3684
NSN 5950-00-054-0928
NSN 6220-01-496-0539
NSN 5996-01-068-9103
NSN 5985-01-557-5371
NSN 6150-01-378-9960
NSN 5999-01-565-8544
NSN 6685-01-626-9702