The record contains three bags of construction spares for five and seven pin sockets. There are hex nuts, washers with interior teeth, and washers with little brackets.
Manufacturer
Massachusetts Institute of Technology (MIT)
Dimensions
Hex nut: 1/8 in x 3/4 in x 3/4 in; Small bracketted washer: 1/8 in x 7/8 in x 7/8 in; Washer teeth on the inside: 1/8 in x 5/8 in x 5/8 in