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 5990-01-359-8334
NSN 5950-01-529-1923
NSN 6130-01-408-5814
NSN 5925-00-286-8502
NSN 6150-01-090-0982
NSN 5990-01-426-7350
NSN 5835-00-451-2982
NSN 6650-01-399-0328
NSN 5975-00-119-9182
NSN 6220-01-260-9199
NSN 5835-01-065-3316
NSN 6105-00-901-6826