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 5985-00-284-4856
NSN 2925-00-304-1997
NSN 6145-00-793-7816
NSN 5930-01-207-0601
NSN 5835-01-535-8470
NSN 5990-01-352-5255
NSN 5950-01-045-7718
NSN 5930-00-014-1590
NSN 6620-00-051-7666
NSN 5895-00-160-7660
NSN 6135-00-753-2276
NSN 4140-01-555-8190