MIL-STD-117 B - MIL-STD-117B, MILITARY STANDARD: GAGE, RING, THREAD, LO (NOT GO) AND RELATED THREAD SETTING PLUG GAGES, GO/NOT GO PLAIN PLUG MINOR DIAMETER ACCEPTANCE CHECK GAGES FOR UNIFIED & AMERICAN NATIONAL STANDARD EXTERNAL THREADS (15 MAR 1963) [NO S/S DOC