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 5920-00-271-3217
NSN 5930-01-143-2579
NSN 5925-01-569-4427
NSN 6240-01-233-1093
NSN 2925-00-446-6453
NSN 5915-01-043-9673
NSN 6320-00-731-6134
NSN 6240-00-410-8710
NSN 6135-00-044-3860
NSN 6150-01-452-3971
NSN 6135-00-548-2765
NSN 5895-01-032-4938