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 5920-01-615-3421
NSN 5925-01-274-6987
NSN 5895-00-651-1265
NSN 5925-01-319-2434
NSN 6135-00-161-0746
NSN 5975-01-478-5665
NSN 5920-00-488-9359
NSN 6110-01-202-8807
NSN 6620-01-457-7277
NSN 7035-01-599-1273
NSN 6135-01-430-3119
NSN 5985-01-444-4054