1 Triwall, Aircraft items to include: American Hoist and Derrick Co, Elbow pipe to tube, P/N: 10569; Military Specifications, Hose nonmetallic, Special features, Hose assembly-seamless polychloroprene inner tube-reinforced with one or morefabric braids-polychloroprene, P/N: M6000-F; Anchor Swan Corp, Tee oil tank drain, P/N: A3137