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 6145-01-641-7703
NSN 4140-01-151-2158
NSN 6620-00-809-5156
NSN 4140-00-012-3506
NSN 5950-00-920-8538
NSN 5975-01-143-0147
NSN 6145-00-517-6666
NSN 5930-01-465-4753
NSN 6220-01-593-4970
NSN 5960-00-067-3954
NSN 5895-01-480-4311
NSN 5855-01-260-3693