Base unit 220 vac for sp440
No other part numbers with same form, fit, and function found.
NSN 5975-00-947-9960
NSN 6220-01-307-2447
NSN 5985-01-591-4775
NSN 5996-00-557-1222
NSN 5990-01-483-7313
NSN 5925-00-841-6798
NSN 6620-00-189-0967
NSN 5930-01-224-0593
NSN 5905-01-157-6627
NSN 5998-01-499-7787
NSN 5990-00-488-1091
NSN 6135-01-100-3593