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 6685-00-898-7114
NSN 6240-00-104-4662
NSN 6105-01-301-7159
NSN 5999-00-024-1079
NSN 5905-01-230-3352
NSN 5945-01-031-9709
NSN 6150-00-752-2542
NSN 5999-00-510-4839
NSN 5835-00-494-8419
NSN 5998-01-020-2269
NSN 5985-00-285-8466
NSN 5905-01-339-9020