MIL-STD-1399/505, MILITARY STANDARD: INTERFACE STANDARD FOR SHIPBOARD SYSTEMS (SECTION 505), CENTRAL TIME AND FREQUENCY SUPPORT (26 NOV 1974) [S/S BY MIL-STD-1399/441]., This section defines the standard interface requirements for, and the constraints on, the design of shipboard systems/equipment which will utilize the central time and frequency system.Product Code:SAE AMS4191 Title:Aluminum Alloy, Welding Wire, 6.3Cu - 0.30Mn - 0.18Zr - 0.15Ti - 0.10V (2319) (NONCURRENT Jan 2008) Issuing Committee:Ams D Nonferrous Alloys Committee Scope:This specification covers an aluminum alloy in the form of welding wire.