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 5985-00-274-9778
NSN 5990-01-134-2859
NSN 5910-00-432-9144
NSN 6135-01-319-5567
NSN 6240-00-801-8002
NSN 6685-01-420-4006
NSN 5925-01-061-9717
NSN 6610-01-323-7783
NSN 6610-01-166-3125
NSN 4140-01-177-4776
NSN 5910-01-168-9440
NSN 6620-00-421-2223