Notched with hole in center
NSN 5950-00-205-2932
NSN 5985-00-679-9529
NSN 6220-01-535-6968
NSN 5925-01-475-1271
NSN 6645-01-560-9339
NSN 5975-01-481-5382
NSN 5965-00-436-2226
NSN 5965-01-568-0102
NSN 6240-00-773-2872
NSN 5910-00-203-5373
NSN 5960-00-615-9972
NSN 5945-00-165-3878