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 6145-01-501-4228
NSN 2925-01-439-4451
NSN 5985-00-336-5813
NSN 5985-01-505-3279
NSN 5910-00-239-8411
NSN 6105-01-081-7638
NSN 6685-01-341-7912
NSN 5999-01-507-0443
NSN 6150-01-224-6391
NSN 5910-01-350-1984
NSN 6645-01-411-5657
NSN 6130-01-539-3039