MIL-I-15265 Revision C, June 11, 1992
INSULATION, ELECTRICAL, PLASTIC (SUBMARINE BUS BAR COVERING)
This insulation is intended for covering bus bars, primarily on submarines, where a flame resistant, tough, non-porous, good dielectric covering is needed. The type P material provides a build of approximately 0.060 to 0.070 inches. This insulation shall not be used in applications where the continuous operating hot spot temperature exceeds 221 °F (105 °C) Instructions for applying these materials to submarine battery bus bars and connectors is contained in the appendix to this specification.