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 5996-00-196-7258
NSN 5930-01-156-0402
NSN 6150-01-614-1361
NSN 5998-00-279-3407
NSN 5920-01-350-4426
NSN 6220-00-511-8214
NSN 5960-00-539-1033
NSN 5965-01-111-6031
NSN 5999-01-099-9166
NSN 5985-01-551-4144
NSN 5915-01-265-8357
NSN 2925-01-009-9560