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 5910-01-066-1886
NSN 5920-01-047-9711
NSN 5835-00-930-8500
NSN 5835-01-170-5537
NSN 5855-00-832-9341
NSN 5950-00-133-8916
NSN 6105-01-163-2943
NSN 6135-00-932-3136
NSN 6110-01-411-4042
NSN 5998-00-351-9932
NSN 5915-01-519-2234
NSN 6145-01-349-1014