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 2925-00-420-8151
NSN 5930-01-100-2682
NSN 4140-01-389-0595
NSN 6685-01-331-9244
NSN 5990-01-442-3520
NSN 5960-00-422-0578
NSN 6620-01-443-3526
NSN 6105-01-068-4366
NSN 5835-01-351-3425
NSN 5855-01-057-7818
NSN 6620-00-132-4140
NSN 2925-00-504-2363