MIL-PRF-55182-1 Resistors, Fixed, Film, Nonestablished Reliability, Established Reliability, And Space Level, Style Rn*55 1/This specification covers the associated requirements for style RN*55 1/, nonestablished reliability, established reliability, and space level, film, fixed resistors. Designers are CAUTIONED on using these resistors in high power pulse applications \(see 6.4\).