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 5990-01-439-4643
NSN 6620-01-132-7281
NSN 5920-00-248-3038
NSN 5930-00-809-6543
NSN 5925-01-242-9945
NSN 6150-00-398-6527
NSN 5998-01-583-7457
NSN 6645-01-044-2602
NSN 5905-01-188-6506
NSN 5835-00-554-0399
NSN 7035-01-419-4317
NSN 2925-01-301-1727