0.375" hole diameter 5.500" overall length 3.750" overall width 4 bolt hole quantity material non-asbestos. six slots located on bearing surface along length non-circular
Used on ah-64 apache helicopter. seal, plain encased-apu compressor 2 psi max operating pressure, mil-l-23699 oil lubricant, 2 each 0.062 inch removal holes in metal case, black elastomer marked apu