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 4140-01-307-3143
NSN 5990-01-615-4129
NSN 7035-00-870-0290
NSN 6130-00-122-8700
NSN 5975-01-114-6588
NSN 6610-01-141-7014
NSN 5935-01-065-2281
NSN 5915-01-303-6641
NSN 6240-00-968-9274
NSN 6150-01-327-3963
NSN 7035-01-150-6303
NSN 6240-01-148-3574