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 6110-01-209-9136
NSN 5835-01-574-0080
NSN 6610-01-053-6781
NSN 6145-01-262-3514
NSN 5835-01-189-6095
NSN 5985-01-546-1278
NSN 5835-00-901-4932
NSN 6685-00-732-1927
NSN 5935-00-992-3624
NSN 6650-01-514-7809
NSN 4140-01-096-9158
NSN 5925-00-915-1204