MIL-S-12158D (NOTICE-1), MILITARY SPECIFICATION: SEALING COMPOUND, NON-CURING, POLYBUTANE (28-FEB-1992) [S/S BY A-A-52495]
MIL-S-12158D (NOTICE-1), MILITARY SPECIFICATION: SEALING COMPOUND, NON-CURING, POLYBUTANE (28-FEB-1992) [S/S BY A-A-52495]., MIL-S-12158D(AT), dated 13 June 1988, has been
determined to be valid for use in acquisition.