A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5905-01-244-8295
NSN 6150-01-343-7180
NSN 5935-01-045-6176
NSN 5895-00-069-4546
NSN 2925-00-247-6248
NSN 6110-01-115-3871
NSN 5930-01-469-0263
NSN 4140-00-403-1267
NSN 5920-01-536-3934
NSN 6240-00-432-7639
NSN 6650-01-399-0628
NSN 5835-01-347-8714