A precision tool used as a standard for setting calipers and comparing gages, testing precision tools and measuring parallel surfaces, rings and cylinders. It consists of high grade steel rod, precision ground and lapped to size as to length.
Classification: Drawing, marking-out or mathematical calculating instruments, nesoi
NSN 4140-01-199-3590
NSN 6135-01-388-2581
NSN 6150-01-335-0679
NSN 4140-00-170-5152
NSN 6105-01-145-2681
NSN 6320-01-399-6177
NSN 6620-01-034-4539
NSN 6240-00-594-7138
NSN 5905-01-368-7311
NSN 6110-00-943-3544
NSN 7035-01-568-1987
NSN 5835-01-090-6712