NAS

Fastener - Blind, Internally Threaded, External Sleeve Lightweignt, Flush Head, Millable & Non-Millable, Self-Locking, 1/64" Oversize
Data Sheet by Aerospace Industries Association - National Aerospace Standard, 06/30/2010

Nut, Self-Locking, 450 degrees F, Hexagon, Low Height, 80 K.S.I.
Data Sheet by Aerospace Industries Association - National Aerospace Standard, 06/30/2015

Bolt - Internal Wrenching - Steel 1.5000-12
Data Sheet by Aerospace Industries Association - National Aerospace Standard, 02/01/2002

Elbow, Reducer, 90, Flareless Tube to Swivel
Data Sheet by Aerospace Industries Association - National Aerospace Standard, 04/18/1990