National Item Identification Number
National Stock Number
Federal Supply Class
A locking device which is serrated on the inside and outside diameters. It may have outer serrations omitted on one or two sides for close edge installation. The inner serrations engage the mating serrations of bolts, inserts, nuts, studs or similar items to be locked in place. The outer serrations broach their way into parent material when driven or pressed into place.
Commercial and Government Entity Code (Supplier Data)
ALCOA GLOBAL FASTENERS INC.
DBA ALCOA FASTENING SYSTEMS DIV
800 S. STATE COLLEGE BLVD.
Reference Numbers (Part Numbers)
OVERALL OUTSIDE DIAMETER
STEEL, QQ-S-637, COMP 1117
CADMIUM, QQ-P-416, TYPE 2, CLASS 3
0.829 INCHES NOM