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 6620-00-983-4171
NSN 4140-01-442-8862
NSN
NSN 6150-01-457-5039
NSN 6145-00-801-4621
NSN 5945-00-913-7553
NSN 6220-01-485-1001
NSN 5965-01-286-6548
NSN 5855-01-335-8907
NSN 5930-00-672-0157
NSN 5895-01-159-7854
NSN 6135-01-196-7399