With a quantity of eight pieces, the Washer Seal 8mm is the most used part in the GASKET KIT B diagram.
Some items from this specific schematic: Oil Seal,26x42x8, Washer,plug,drain 12, O-ring,14.8x2.4, Oil Seal 40x58x9.
This Gasket Kit B diagram displays the required parts for the Cb750 Nighthawk 1991 (m) Usa Gasket Kit B.