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 5920-00-175-7987
NSN 6645-01-361-8947
NSN 7035-01-514-2221
NSN 5960-00-431-8739
NSN 6130-01-459-9831
NSN 5965-00-529-0602
NSN 6645-00-351-8580
NSN 4140-00-495-0649
NSN 5930-01-230-8069
NSN 5905-01-451-4205
NSN 5985-01-433-1057
NSN 5915-01-505-3730