Size: 1-7/8, Len: 3.

Fastenal Part Number: 08217136182

NSN	5130-01-400-0169
Common Name	Size: 1-7/8, Len: 3.
Description	Size: 1-7/8, Len: 3.531, Drive End Dia: 2.125, Socket End Dia: 2.625, Drive Depth: 1.063