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 4140-01-031-0286
NSN 5990-00-145-1187
NSN 5945-00-833-0640
NSN 5910-00-396-3300
NSN 6105-01-444-3849
NSN 5905-00-372-5214
NSN 5895-01-626-0138
NSN 6610-00-728-9825
NSN 6240-01-093-3554
NSN 5925-00-496-3826
NSN 5920-01-559-6721
NSN 5855-00-436-3852