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 5895-01-028-8425
NSN 6650-01-381-2972
NSN 6240-01-462-5433
NSN 4140-01-413-3593
NSN 5915-01-027-7456
NSN 6110-00-998-3599
NSN 5996-00-061-0336
NSN 5925-01-512-5100
NSN 6610-01-149-4753
NSN 6130-01-194-7803
NSN 4140-01-451-4955
NSN 6610-00-946-6146