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 5998-00-548-9387
NSN 6610-01-648-9997
NSN 5999-00-496-1843
NSN 5925-00-031-4108
NSN 6105-01-331-3048
NSN 6650-01-521-7872
NSN 6650-01-570-4795
NSN 5905-00-706-8011
NSN 5925-01-290-0532
NSN 4140-01-508-4512
NSN 5998-00-051-4163
NSN 5855-01-040-3882