Actual matl is 410 stainless steel
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
Classification: Spring washers and other lock washers, iron or steel
NSN 7035-00-104-7613
NSN 6130-00-186-8460
NSN 5998-00-834-7122
NSN 5996-01-482-2214
NSN 5975-01-370-5935
NSN 5915-01-056-6287
NSN 5960-01-489-1510
NSN 6105-01-563-7594
NSN 6685-01-447-5633
NSN 5975-00-009-6256
NSN 5905-00-270-8104
NSN 6145-01-230-3595