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 5996-01-159-9089
NSN 4140-01-068-8513
NSN 6110-01-288-2755
NSN 5950-01-282-9852
NSN 5975-00-026-0933
NSN 6620-01-287-1443
NSN 6620-01-324-7809
NSN 6645-00-489-3155
NSN 5975-00-633-4925
NSN 6685-01-311-3855
NSN 6110-00-116-5514
NSN 5855-01-392-3734