5307-01-059-9807 (23173-0010)
NSN 5307-01-059-9807 (NIIN 01-059-9807) is a self-locking stud in Federal Supply Class 5307, Studs — a headed fastener threaded externally on a portion or on the full length of the shank. Manufacturer part number 23173-0010 (Bae Systems Information & Electronic, CAGE 19397); also referenced as CHC-440-4 (Penn Engineering & Manufacturing).
NIIN assigned May 1978; DEMIL A (none required); unit of issue EA (each), $0.19 gov standard price; ships at 0.01 lb / 0.001 cu ft.