MIL-V-81356B (AMENDMENT 1), MILITARY SPECIFICATION: VALVE, FUEL SYSTEM PRESSURIZATION AND VENT (31 OCT 2000)., This amendment forms a part of MIL-V-81356B(AS), dated 02 November 1992, and isapproved for use by the Naval Air Systems Command, Department of the Navy and is availablefor use by all Departments and Agencies of the Department of Defense.