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 6240-00-052-4592
NSN 4140-01-149-4803
NSN 6320-00-035-8781
NSN 6220-01-025-6140
NSN 5910-00-216-4115
NSN 6135-01-483-1501
NSN 6610-01-030-7226
NSN 5998-01-464-3739
NSN 4140-01-348-7414
NSN 5985-00-216-7057
NSN 5998-01-514-2492
NSN 6320-00-790-4844