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 5999-01-086-7338
NSN 5960-01-451-6993
NSN 5990-00-369-5212
NSN 5835-01-524-4731
NSN 5990-00-399-2454
NSN 5835-01-357-1247
NSN 6105-01-178-4139
NSN 6145-01-209-3830
NSN 2925-01-570-3690
NSN 6150-01-330-0585
NSN 6135-01-512-8740
NSN 5999-00-842-0824