The item has four holes in it
A circular shaped item designed to be installed in a specially prepared groove or counterbore to provide a low pressure seal. It may be supplied in various cross-sectional shapes and is cut through at one point to allow for installation and fitting. Excludes items whose primary function is to provide sealing, wiping, or wearing surface capabilities for piston configurations. See also ring, piston and ring, wiper.
Classification: Gaskets,washers & other seals
NSN 5855-01-628-9909
NSN 4140-00-887-6787
NSN 6650-01-383-4526
NSN 5998-00-355-4882
NSN 5975-01-451-4799
NSN 5945-01-272-9579
NSN 5905-01-432-1157
NSN 5905-01-406-6007
NSN 5998-01-282-4901
NSN 5990-00-056-3177
NSN 6110-01-336-7152
NSN 5996-01-527-9707