Matl ams 5591 or ams 5613, hardness rockwell c30-38
No other part numbers with same form, fit, and function found.
NSN 5960-00-449-7994
NSN 6610-01-375-1527
NSN 6645-01-205-3869
NSN 7035-01-295-1609
NSN 2925-00-774-8247
NSN 5835-01-442-6482
NSN 4140-01-227-4183
NSN 6645-01-177-6021
NSN 5930-01-587-2286
NSN 5990-01-216-1276
NSN 5950-00-155-4753
NSN 2925-00-925-0545