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 5975-00-407-6554
NSN 6220-01-640-9546
NSN 5915-00-857-9188
NSN 6130-01-284-7238
NSN 5945-01-608-1739
NSN 7035-00-941-4949
NSN 6320-00-511-7331
NSN 5960-01-613-6122
NSN 6130-01-132-3756
NSN 6150-00-125-9572
NSN 6135-00-016-0071
NSN 5920-01-494-9401