Marked with a blue dot
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 6220-01-349-8666
NSN 5975-01-308-9474
NSN 5920-01-488-5186
NSN 6135-01-512-8105
NSN 5990-01-433-3786
NSN 5950-00-491-9111
NSN 6105-00-339-8366
NSN 5985-00-271-9502
NSN 6240-00-364-0850
NSN 6130-01-049-5365
NSN 2925-01-026-1000
NSN 2925-01-400-2286