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 5999-01-151-4443
NSN 6610-00-005-4452
NSN 6320-01-618-7800
NSN 5925-01-527-6916
NSN 7035-00-104-7613
NSN 5895-01-050-9616
NSN 2925-01-591-4030
NSN 5930-01-579-7253
NSN 5905-01-224-6970
NSN 6145-00-267-0853
NSN 6620-00-221-7608
NSN 5965-00-275-0491