Cage 3lyt2 states they are the manufacturer.
A multi-ported, nonlubricated valve designed to provide straight through flow or ability to direct a number of flows or pressure through a single valve. The flow is controlled by the rotation of a ported ball within a suitable ported seat(s). The ball is usually engaged by a stem. It is normally operated in an open or closed position. Excludes valve, check.
NSN 5990-01-423-8189
NSN 6135-01-142-2417
NSN 5855-01-360-4656
NSN 5910-00-574-5753
NSN 5905-00-790-4122
NSN 5915-01-452-2735
NSN 2925-01-261-0701
NSN 4140-01-319-3486
NSN 5990-00-620-1137
NSN 5915-01-139-3604
NSN 5996-01-143-5779
NSN 5915-01-054-3788