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.
NSN 5990-01-057-4191
NSN 6645-00-081-4298
NSN 6650-00-238-1199
NSN 5835-01-061-9434
NSN 5910-01-259-4764
NSN 5895-01-154-4729
NSN 5855-01-389-8884
NSN 6610-01-549-1802
NSN 6105-01-278-8887
NSN 5950-00-011-5058
NSN 5895-01-297-3935
NSN 6105-01-385-3185