Described as 12 1/2 inch riveted impellor with 5/8 inch bore
NSN 5930-00-018-9283
NSN 5910-01-210-5323
NSN 5998-00-849-3362
NSN 5930-01-642-3144
NSN 5975-01-431-8814
NSN 5895-01-530-6017
NSN 5945-01-112-0147
NSN 5910-00-010-9853
NSN 5835-01-331-5735
NSN 5920-01-549-1289
NSN 2925-00-328-2018
NSN 5905-01-503-4888