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 5998-01-261-8121
NSN 2925-00-163-9016
NSN 5925-01-067-8301
NSN 6130-01-415-2470
NSN 5960-00-840-5465
NSN 4140-01-340-7606
NSN 6145-01-011-7132
NSN 5990-01-621-6969
NSN 5945-01-456-9136
NSN 5945-01-249-6084
NSN 6620-01-241-2996
NSN 5945-01-645-5151