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 4140-00-500-2718
NSN 5999-01-281-7525
NSN 6110-00-118-1260
NSN 5930-01-471-5066
NSN 4140-00-573-5721
NSN 5990-00-105-7831
NSN 6135-00-891-4944
NSN 4140-01-226-8933
NSN 5999-01-290-8058
NSN 5895-00-521-3046
NSN 5855-01-033-1375
NSN 6620-00-357-1157