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 6610-00-774-2680
NSN 5915-00-468-2568
NSN 2925-00-210-3873
NSN 5945-01-328-7531
NSN 5905-00-816-4987
NSN 6220-01-361-5182
NSN 5920-00-281-2488
NSN 6685-00-900-4246
NSN 5910-01-498-5075
NSN 5985-00-060-8828
NSN 5950-00-133-1902
NSN 5915-00-469-3074