GAGE, RING, THREAD, LO (NOT GO) AND RELATED THREAD SETTING PLUG GAGES, GO AND NOT GO PLAIN PLUG MINOR DIAMETER ACCEPTANCE CHECK GAGES FOR UNIFIED AND AMERICAN NATIONAL STANDARD EXTERNAL THREADS (NO S/S DOCUMENT) (SUPERSEDING MIL-STD-117A)
用于统一和美国国家标准外螺纹的量规、环规、螺纹规、LO(NOT-GO)和相关的螺纹固定塞规、GO和NOT-GO平塞小直径验收量规(无S/S文件)(代替MIL-STD-117A)