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 5998-00-845-4873
NSN 5975-00-541-8531
NSN 5965-00-356-3838
NSN 2925-00-225-1730
NSN 5960-00-066-0430
NSN 5835-01-528-7454
NSN 5985-00-819-2329
NSN 5990-01-483-7313
NSN 5925-01-401-5314
NSN 5895-01-658-6241
NSN 6685-00-546-5755
NSN 6240-01-621-2774