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 5990-01-159-5988
NSN 4140-00-516-5002
NSN 5910-01-421-5388
NSN 5905-01-359-8097
NSN 6240-01-381-1072
NSN 5855-00-797-8217
NSN 6620-00-891-8584
NSN 6150-01-426-1516
NSN 5930-00-931-9370
NSN 5990-01-370-7912
NSN 5835-00-080-8213
NSN 5960-01-121-1054