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 4140-00-218-0804
NSN 5945-01-425-1749
NSN 5935-01-026-2200
NSN 2925-01-320-6512
NSN 6135-00-152-8729
NSN 6135-01-450-0948
NSN 5975-00-173-1810
NSN 5985-01-093-9408
NSN 5998-01-485-9530
NSN 6685-00-816-8838
NSN 2925-00-767-4245
NSN 5999-01-180-8303