One or more blades (leaves) of tempered steel, ground to and marked with their respective pitch, expressed as number of threads per inch in the english system and as millimeters or fractional parts thereof in the metric system. It is used for checking the pitch of external or internal screw threads.
Classification: Other measuring or checking instruments, appliances and machines, nesoi in chapter 90
NSN 6610-00-251-0369
NSN 6610-01-152-2821
NSN 7035-01-592-1604
NSN 5998-01-451-4328
NSN 5910-01-473-2485
NSN 5965-01-590-7887
NSN 5895-01-224-7832
NSN 6135-01-452-2421
NSN 6610-01-065-1073
NSN 5855-01-236-9645
NSN 5905-01-574-9607
NSN 5985-00-901-6221