MIL-DTL-5516 Packing, Preformed, Petroleum Hydraulic Fluid Resistant, 160 Degrees F \(71 Degrees C\)This specification covers preformed packings for use where resistance to hydraulic fluid conforming to specification MIL-PRF-5606 is required at temperatures from -65 Degrees to 160 Degrees F \(-54 Degrees to 71 Degrees C\).