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
NSN 5960-00-945-1833
NSN 5835-01-229-6964
NSN 5905-01-236-5519
NSN 5996-01-067-8303
NSN 5910-01-113-5878
NSN 5998-00-111-5491
NSN 5990-00-072-5450
NSN 5998-00-010-9977
NSN 6685-01-555-7938
NSN 5960-01-331-1076
NSN 6685-00-012-3734