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 6240-00-818-1364
NSN 5895-00-752-6171
NSN 6620-01-143-4862
NSN 6320-01-039-5891
NSN 6110-01-208-4920
NSN 6620-00-881-3908
NSN 6130-01-299-9893
NSN 5920-00-401-0217
NSN 5999-01-538-3202
NSN 5960-00-467-7400
NSN 5925-01-457-5668
NSN 4140-01-618-0385