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 6145-01-409-1685
NSN 6220-00-907-3526
NSN 4140-01-364-9797
NSN 5975-00-099-9312
NSN 5930-01-177-7481
NSN 6150-00-186-2409
NSN 5915-00-100-5239
NSN 5999-01-525-7937
NSN 5930-01-517-2344
NSN 6645-01-414-8806
NSN 5985-00-644-9008
NSN 6645-00-051-6673