Thread series designator: un; thread size: 0.250; thread quantity per inch: 28
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 5960-01-461-1384
NSN 5998-01-257-4726
NSN 5985-01-262-1334
NSN 5935-00-003-3476
NSN 5895-01-295-4910
NSN 5999-01-392-7290
NSN 5835-01-160-7282
NSN 6240-00-990-3226
NSN 5920-00-924-3937
NSN 6685-01-274-3891
NSN 5985-01-474-2143
NSN 6620-01-034-4539