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 5998-00-137-4149
NSN 5905-00-661-2395
NSN 5999-01-632-8827
NSN 6150-00-009-0833
NSN 6240-00-760-6323
NSN 5950-00-482-1380
NSN 6685-00-313-9239
NSN 5990-00-202-5127
NSN 4140-00-078-5165
NSN 5960-01-411-5899
NSN 5930-01-184-3048
NSN 6645-01-238-2718