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 4140-01-321-2558
NSN 5855-01-312-5160
NSN 5930-00-151-9286
NSN 5915-01-465-9400
NSN 5855-00-361-0167
NSN 5999-01-482-2601
NSN 6320-01-358-0141
NSN 6685-00-527-7952
NSN 2925-00-540-9918
NSN 5960-01-217-5850
NSN 6240-01-607-6252
NSN 6645-01-192-2883