This is a missile roll thruster assembly with mating electrical connector.
Wright Components PN 15944-3
US Army PN 11502901-11
NSN 1420-01-205-6827
Date code 6/85
Compressed gas required. solenoid switched, 24 vdc
Mounting base is 2024 Aluminum, 3.50" in diameter.
Outlet nozzles are 6063 Aluminum, 0.500" in diameter.
Possibly from a Lockheed MGM-31 Pershing or LGM-30 Minuteman series missile
Used condition