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 5950-00-153-1959
NSN 2925-01-228-6554
NSN 6105-01-143-1332
NSN 5985-01-418-7217
NSN 2925-01-535-7235
NSN 6650-01-219-9411
NSN 5996-01-559-0284
NSN 5996-00-849-7532
NSN 5855-00-327-2112
NSN 5930-00-960-9240
NSN 6650-01-452-1167
NSN 6610-01-141-7014