MIL-U-20625 Revision A, March 28, 1957
UNIVERSAL JOINTS, BLOCK TYPE, MECHANICAL
Includes all amendments and changes through Amendment 2, May 12, 1959
Additional Comments: RENUMBERED AS MIL-DTL-20625
This specification covers universal joints of the block type for use in rotary type hand-operated or intermittent power operated valve remote control systems of the mechanical type.