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 5985-01-303-2107
NSN 6610-00-527-8892
NSN 5920-01-006-5847
NSN 6240-00-110-4497
NSN 6105-00-752-2560
NSN 6645-00-163-9580
NSN 5960-01-380-0885
NSN 5965-01-600-4847
NSN 6220-00-138-8886
NSN 6620-01-647-1393
NSN 4140-01-368-7097
NSN 6130-00-166-0626