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 6650-01-443-4053
NSN 6110-00-717-5860
NSN 7035-00-631-3782
NSN 5925-01-093-9455
NSN 6620-00-727-8043
NSN 6220-00-080-2352
NSN 5996-01-189-6280
NSN 5920-00-373-3636
NSN 5905-01-027-2989
NSN 5985-00-782-0423
NSN 5950-00-729-8502
NSN 4140-01-156-6551