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 6610-00-906-0821
NSN 5945-00-998-2813
NSN 5905-00-111-2214
NSN 4140-01-442-6442
NSN 4140-00-442-3490
NSN 4140-00-595-7535
NSN 5990-01-314-2264
NSN 5835-00-222-3956
NSN 5950-00-111-1366
NSN 5910-01-525-8728
NSN 6145-00-467-0569
NSN 6150-01-491-7270