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 5925-01-483-2007
NSN 6105-00-078-9372
NSN 5999-01-476-7325
NSN 5945-00-912-0165
NSN 5945-00-204-9949
NSN 5999-01-292-3024
NSN 5960-01-092-1234
NSN 5835-00-949-0738
NSN 5895-01-094-9650
NSN 5975-01-605-1308
NSN 6130-01-554-6652
NSN 5985-01-559-6734