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 4140-00-104-7323
NSN 6320-01-195-5583
NSN 6320-01-607-1491
NSN 6130-00-080-0506
NSN 5945-01-271-5495
NSN 6135-01-185-3614
NSN 6150-01-499-2741
NSN 5895-00-276-7916
NSN 5950-01-201-3884
NSN 6685-00-221-4435
NSN 6610-01-136-4866
NSN 5855-00-455-6070