1/4 inch
A washer which is usually round with a centrally located hole. Its edges and two bearing surfaces are so designed that applied pressure brings into play the spring tension and/or frictional locking principle which materially resists any tendency toward turning. It may be made of one or two pieces
NSN 5996-00-467-4196
NSN 5990-01-012-0613
NSN 6145-01-305-8646
NSN 5915-00-761-4986
NSN 5945-01-391-9016
NSN 5915-00-875-2101
NSN 5950-01-348-0913
NSN 5950-01-429-8186
NSN 5930-00-922-7374
NSN 5975-01-198-9916
NSN 6150-01-110-9377
NSN 6320-01-358-8069