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 6610-00-350-1091
NSN 6105-01-445-6022
NSN 5925-01-222-5349
NSN 5985-01-172-6098
NSN 6130-01-574-3262
NSN 5915-01-171-5727
NSN 6110-01-461-5116
NSN 5950-00-844-4495
NSN 7035-01-366-5912
NSN 6620-00-273-8735
NSN 2925-01-603-2033
NSN 5915-01-294-5760