A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see packing,preformed. For noncircular items with a round cross-section, see seal,nonmetallic round section and rubber,round section.
Classification: Gaskets, washers and other seals, of vulcanized rubber other than hard rubber
NSN 4140-01-378-5753
NSN 2925-01-157-9204
NSN 5990-01-565-2226
NSN 6220-01-184-8738
NSN 6320-01-029-4220
NSN 5950-01-334-1987
NSN 7035-01-158-7673
NSN 6105-01-262-6080
NSN 6220-01-356-7950
NSN 5855-01-225-5855
NSN 6145-01-087-3320
NSN 4140-01-172-2331