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 5990-01-334-8634
NSN 4140-00-246-4969
NSN 5950-01-539-1043
NSN 5925-01-202-8280
NSN 5855-01-425-6340
NSN 6240-00-822-4571
NSN 6320-01-129-9656
NSN 6150-00-740-8011
NSN 5855-01-068-3683
NSN 5930-00-336-9401
NSN 5996-01-525-4957
NSN 6610-00-481-1197