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 5998-01-442-9119
NSN 6240-01-327-4120
NSN 6650-01-351-4544
NSN 6130-00-381-1927
NSN 6650-01-381-2972
NSN 5965-01-176-7265
NSN 5985-00-842-5432
NSN 6685-00-010-8367
NSN 5990-00-800-2521
NSN 5930-00-673-8289
NSN 5985-01-040-5878
NSN 5965-00-099-0698