Kirby Morgan 525 767 Balanced 455 Regulator Rebuild Kit Wire Wheel Caseback: 316L stainless steel with Underwater Impact Wrench Caseback: 316L stainless steel with O ring gasket seal It's been speculated the sheepfoot shaped blade originated with mariners who found the rounded tip especially beneficial when the knife was accidentally dropped (think working on a ship in pitching seas) as it couldn't stab the foot when hitting the deck Balanced 2 210 060 Valve Seat 1 220 056 Lever Bearing Clip 1 235 015 Spring 1 240 008 Lever Arm 1 310 003 O ring 2 510 010 O ring 1 510 012 O ring 1 510 015** O ring** 2** 510 017 O ring 2 510 019 O ring 1 510 776 Exhaust Valve 1 510 789 Diaphragm Assembly 1 540 531 Lock Clip 1 550 640 Shaft Bearing Washer 1 PART # DESCRIPTION QTY