SPI.pdf

This Special Packaging Instruction (SPI) document provides detailed specifications for packaging a turbine aircraft disk. The packaging involves a multi-layer containment system with precise dimensional requirements, including a container with interior dimensions of 19 3/4 x 19 3/4 x 4 7/8 inches and a total item weight of 31.8 pounds. Preservation is to be performed according to MIL-STD-2073, with serviceable and unserviceable methods specified.

The packaging includes multiple components: a container I.D., bottom pad, wrap, grease-proof waterproof bag, top pad, and adhesive. Specific material specifications are referenced, including ASTM-D4727, MIL-PRF-121, and equivalent standards. The document includes detailed technical drawings showing a 2" chamfer, a turbine disk component, and precise measurements for the bottom pad, with a section view detailing the pad's specific geometric configuration. The document is marked for distribution only to Department of Defense and U.S. DOD contractors, with a computer-generated DD Form 21369 dated March 1987.