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 6150-01-388-6286
NSN 6150-01-212-7110
NSN 5925-01-287-9206
NSN 4140-00-595-7535
NSN 5935-01-188-9070
NSN 5965-01-413-2933
NSN 5925-01-562-2900
NSN 2925-01-224-1885
NSN 5996-01-067-8303
NSN 5985-01-006-7917
NSN 6220-01-498-5319
NSN 6620-01-228-1571