Synthetic sapphire or ruby, olivehole 0.500 in. Min and 0.502 in. Max id; 0.119 in. Min and 0.120 in. Max od; 0.030 in. Min and 0.036 in. Max lg
An item generally round in shape and usually having a centrally located hole. It has at least one flat bearing surface. It is made of precious or semi-precious gem (ruby, sapphire and the like), natural or synthetic. It is intended for use in precision instruments, meters, timing devices, clocks, and the like.
Classification: Clock or watch jewels
NSN 5985-01-112-0180
NSN 4140-01-553-0552
NSN 5855-01-241-1054
NSN 6130-00-691-5408
NSN 6150-01-468-3428
NSN 5925-01-439-0167
NSN 6105-00-582-6517
NSN 6685-00-187-8379
NSN 5925-01-582-8458
NSN 6150-01-327-9534
NSN 5915-01-234-5797
NSN 6150-01-571-0203