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 4140-01-498-9762
NSN 5975-01-009-7677
NSN 5925-01-309-3951
NSN 2925-01-523-3607
NSN 6620-01-624-3933
NSN 5915-01-272-4104
NSN 5905-01-582-5539
NSN 6135-00-738-5571
NSN 5999-01-519-8595
NSN 5990-00-269-2226
NSN 7035-01-429-4183
NSN 5905-01-279-7607