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 5990-01-364-0813
NSN 2925-01-624-2965
NSN 5895-01-540-6730
NSN 5925-00-205-2767
NSN 6105-01-542-9995
NSN 5950-00-409-1655
NSN 5999-01-252-8812
NSN 5990-01-059-0947
NSN 5920-00-952-4080
NSN 5895-01-060-7991
NSN 5960-00-289-6591
NSN 6110-01-255-9892