As World War II neared, Keystone turned to making aircraft parts and tooling. Upon full mobilization, Keystone became sole source supplier to Lockheed for P-38 aircraft landing gear making, at one point, 66 main and 33 nose gear units per day. Keystone also produced turret bearings for tanks, being the only such manufacturer west of the Mississippi River.
Keystone kept pace with industry’s growth by demonstrating a record of service. The combination of the West’s most experienced and skilled craftsmen and being one of the best equipped & diversified manufacturing plants attracted other metal fabrication business. Business diversified into components for nuclear power plants, copper mines, ordnance vehicles, oil equipment, etc…
In the making of turret bearings Keystone acquired a unique expertise that evolved into the capability to design, qualify & produce ultra high performance, large diameter bearings. This capability provided Keystone the opportunity to design & produce the large diameter, anti-friction, hollow section bearing for the E-3A radar rotodome on the Boeing AWACS (Airborne Warning and Control Systems). Keystone is the sole source for new bearing and overhaul & repair of the world-wide fleet of AWACS systems flying today.
Keystone added space satellite tank and expendable launch vehicle (rockets) business through acquisition of key personnel and equipment and incorporation of existing Keystone Engineering technologies. Keystone delivers its first satellite tanks produced using spin-form manufacturing technologies developed by Keystone for the fabrication of Titanium hemisphere and elliptical domes. Keystone also initiates the design and fabrication capability to produce all metal propellant tanks with propellant management devices for satellite propulsion and station keeping.
Keystone expands engineering technology to include complete COPV propellant and pressurant tank design and fabrication capabilities. Keystone heritage spin-form capabilities are consolidated into the Long Beach facilities. Keystone initiates design & development for new generation propellant and pressurant tanks for manned commercial spaceflight.