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 5999-00-621-9147
NSN 6220-01-086-2080
NSN 5999-00-681-3535
NSN 5925-00-833-6028
NSN 5990-00-902-5268
NSN 6610-01-179-8352
NSN 4140-01-036-1069
NSN 5985-01-077-0859
NSN 6645-01-025-1002
NSN 6130-01-632-6937
NSN 6685-00-763-1080
NSN 5996-01-129-7878