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 5990-00-240-6454
NSN 6645-00-900-5830
NSN 5985-00-385-1643
NSN 6150-00-083-0409
NSN 5920-01-560-7308
NSN 6110-01-375-0949
NSN 6130-01-539-5112
NSN 5996-01-153-2359
NSN 5855-01-409-1792
NSN 5975-01-244-0942
NSN 5990-01-172-4553
NSN 5920-01-515-5712