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 5920-01-112-0296
NSN 4140-00-203-0812
NSN 6620-01-449-3101
NSN 5990-01-411-5930
NSN 5915-01-485-0222
NSN 6620-01-207-8043
NSN 5996-01-137-2927
NSN 6105-01-451-6801
NSN 5950-00-059-4381
NSN 5895-00-450-6493
NSN 6685-01-535-7268
NSN 5895-00-278-8092