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 5990-00-202-5127
NSN 5905-01-167-1580
NSN 5925-01-406-4093
NSN 2925-00-740-7029
NSN 5950-01-211-2105
NSN 5930-01-385-7605
NSN 5915-01-370-4797
NSN 5930-00-348-6601
NSN 5996-00-222-6049
NSN 5915-01-535-6666
NSN 5950-01-086-6176
NSN 6320-01-345-5817