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 2925-01-399-2765
NSN 4140-00-078-9357
NSN 6320-01-006-6138
NSN 5920-01-272-4186
NSN 6145-01-358-9300
NSN 5915-01-042-6781
NSN 5950-00-811-2569
NSN 6685-01-476-1165
NSN 5935-01-079-9332
NSN 6220-00-769-1836
NSN 6620-00-286-5721
NSN 4140-00-205-0853