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 6650-01-519-1867
NSN 5985-00-709-6214
NSN 2925-00-056-7112
NSN 6130-01-160-3891
NSN 5985-00-125-7642
NSN 7035-01-650-5774
NSN 6110-01-406-4818
NSN 6645-00-574-9712
NSN 5965-00-412-4402
NSN 6220-00-397-6910
NSN 6685-00-821-7533
NSN 6130-01-463-8672