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 6645-00-812-5243
NSN 6130-01-146-4687
NSN 5945-00-363-9481
NSN 5990-01-527-7640
NSN 5990-00-446-0518
NSN 6620-01-445-4295
NSN 6320-01-573-3215
NSN 6105-00-233-3103
NSN 5905-01-553-2314
NSN 5910-00-843-0354
NSN 5990-00-339-2084
NSN 6145-00-935-5242