Thd is a class 3 fit
An internally threaded nut which has an internal seat or shoulder designed to engage the nut retaining flange of a union tailpiece. The threaded portion is used to engage the thread piece of a union, union elbor or the like. Excludes nut (1), tube coupling.
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 6650-00-146-3282
NSN 5965-01-135-1336
NSN 5855-01-464-3152
NSN 2925-00-203-8735
NSN 7035-00-541-8516
NSN 5930-01-604-6212
NSN 5945-01-175-2395
NSN 5855-01-486-9924
NSN 5915-01-602-9324
NSN 5999-01-155-4159
NSN 5935-00-232-8088
NSN 5999-00-492-0158