One notch 0.036 in. W by 0.060 in. Deep on outer edge
A bent spring metal washer with a centrally located hole. It is designed to exert pressure axially when assembled in place.
Classification: Spring washers and other lock washers, iron or steel
NSN 5990-01-443-2931
NSN 4140-01-347-8502
NSN 6105-00-217-8990
NSN 5895-01-522-1867
NSN 6645-00-899-1235
NSN 7035-00-902-8995
NSN 5930-01-354-8119
NSN 5855-01-278-8922
NSN 5999-00-836-6763
NSN 5920-01-007-8775
NSN 6150-01-013-9229
NSN 6105-00-165-4236