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 4140-00-146-1633
NSN 4140-00-736-8813
NSN 6685-01-512-3214
NSN 6105-00-769-5634
NSN 5920-01-232-1453
NSN 5998-01-199-2925
NSN 5960-01-575-5603
NSN 5915-01-097-5277
NSN 5920-01-440-0186
NSN 5990-00-155-2306
NSN 6620-01-085-8688
NSN 5996-01-477-2095