MIL-PRF-39007/11H, PERFORMANCE SPECIFICATION, RESISTOR, FIXED, WIRE-WOUND (POWER TYPE), NONESTABLISHED RELIABILITY, ESTABLISHED RELIABILITY, AND SPACE LEVEL STYLE RWR89 (3 JUL 1997)., This specification covers the associated requirements for style RWR89, nonestablished reliability, established reliability, and space level, power type, wire-wound, fixed resistor. These resistors are available with terminal types “S” (solderable, inductively wound), “W” (weldable, inductively wound), “N” (solderable, noninductively wound, and “Z” (weldable, noninductively wound).