A cylindrical item, flatted on one side, used for checking the diameter, or testing roundness of measuring wires or pins. It has hardened and ground surfaces, and may be plain, or have 60 degree "v" shaped peripheral grooves.
Classification: Parts and accessories of articles of subheading 9017.30.40
NSN 5905-00-116-1736
NSN 5935-01-384-2606
NSN 5925-01-106-6726
NSN 6110-00-621-3475
NSN 6320-00-681-1324
NSN 5915-01-382-9383
NSN 5985-00-808-5814
NSN 7035-01-512-1826
NSN 6130-01-014-0832
NSN 6110-01-082-4172
NSN 5915-01-066-6369
NSN 6645-01-486-4305