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 5990-00-491-6685
NSN 6135-01-292-7723
NSN 6220-00-249-4751
NSN 6145-01-254-2297
NSN 6135-00-575-8942
NSN 5855-00-908-9314
NSN 5930-01-158-7607
NSN 2925-00-953-2920
NSN 6240-00-011-5273
NSN 5835-00-387-4759
NSN 5905-01-455-2663
NSN 6145-01-366-3257