56 pins; c unit
NSN 6685-00-555-4198
NSN 6135-00-321-6707
NSN 5905-00-369-0446
NSN 5895-00-936-6987
NSN 5965-00-208-4896
NSN 6110-01-266-1617
NSN 5950-00-869-0922
NSN 5990-01-378-7349
NSN 5950-01-144-9969
NSN 7035-01-285-4473
NSN 6145-01-047-0555
NSN 6105-00-469-2293