NPFC - MIL-S-7742
SCREW THREADS, STANDARD, OPTIMUM SELECTED SERIES: GENERAL SPECIFICATION FOR
|Publication Date:||29 July 1988|
Purpose. This specification covers the requirements for a selected series for Unified and Unified Miniature screw threads, classes 3A and 3B of FED-STD-H28/2 and FED-STD-H28/5 for general aerospace application.