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 5910-01-382-3740
NSN 6150-00-240-8024
NSN 5945-01-478-2511
NSN 5950-00-213-8687
NSN 5945-01-098-9994
NSN 6645-01-453-6184
NSN 7035-00-295-0451
NSN 5990-01-407-1474
NSN 6110-01-525-6326
NSN 5920-01-521-1307
NSN 6650-01-120-6231
NSN 6220-01-419-5882