MIL-DTL-2E, DETAIL SPECIFICATION: VALVES, CYLINDER, GAS(FOR COMPRESSED OR LIQUEFIED GASES), GENERAL SPECIFICATION FOR (09 JUN 1995) [SUPERSEDES MIL-V-2D] [S/S BY A-A-59860]., This specification provides design and operational requirements for cylindervalves (see 6.7.3) used with compressed gas (see 6.7.1) cylinders containing liquefied (see 6.7.7)or non-liquefied compressed gases (see 6.7.8) or mixtures.