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 5996-01-039-2206
NSN 6685-00-774-9682
NSN 2925-00-587-8968
NSN 5855-00-832-9341
NSN 5998-01-524-5123
NSN 5895-01-573-7270
NSN 5895-01-396-4258
NSN 5960-01-609-6565
NSN 5985-00-140-4117
NSN 5975-01-625-9887
NSN 5985-01-238-3899
NSN 6105-01-419-4200