MIL-DTL-9490E 4 MIL-P-5518 - Pneumatic Systems, Aircraft, Design and Installation, General Requirements for (Inactive for new design) MIL-T-5677 - Thimbles, Wire-Cable, Aircraft MIL-B-5687 - Bearings, Sleeve, Washers, Thrust, Sintered, Metal Powder, Oil-Impregnated (Inactive for new ...