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 5990-01-367-8747
NSN 6320-00-925-0558
NSN 5945-01-483-5561
NSN 5835-01-537-1228
NSN 4140-01-345-6625
NSN 6645-01-456-1182
NSN 5950-01-357-1089
NSN 5925-01-264-9786
NSN 5999-01-596-1671
NSN 7035-00-300-3208
NSN 6240-00-923-0758
NSN 6105-00-263-1261