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 2925-01-633-4048
NSN 5975-00-418-0861
NSN 6145-01-487-3773
NSN 5910-00-368-4108
NSN 5930-01-423-9415
NSN 6135-00-377-9165
NSN 5935-00-184-7482
NSN 5930-01-131-2863
NSN 6105-00-292-4110
NSN 6685-01-051-3794
NSN 5996-01-123-0792
NSN 6150-01-632-6623