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 6645-01-406-0688
NSN 5990-00-609-4279
NSN 6110-00-547-2149
NSN 5915-01-008-5317
NSN 5975-00-082-0894
NSN 6145-00-539-9799
NSN 6220-01-202-7954
NSN 6135-01-400-2947
NSN 5835-01-310-8979
NSN 6685-01-424-0975
NSN 5998-01-450-2719
NSN 2925-01-485-6262