Number 40, a-5 clipper blade made by oster
NSN 6650-01-470-1315
NSN 5930-01-216-4886
NSN 5990-01-024-9659
NSN 6220-00-778-7213
NSN 2925-00-728-8118
NSN 6610-01-159-0438
NSN 6145-01-142-0068
NSN 5965-01-617-0890
NSN 6130-01-452-0784
NSN 5945-01-461-2141
NSN 5998-01-406-5713
NSN 6320-00-937-5625