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 6685-00-056-5404
NSN 5895-01-088-4914
NSN 5950-01-500-1979
NSN 6610-01-116-2527
NSN 5950-01-618-7451
NSN 5985-01-119-2899
NSN 5930-01-424-7227
NSN 5835-01-645-2892
NSN 5925-01-421-5731
NSN 5960-01-146-0289
NSN 6105-01-273-3938
NSN 5835-00-933-9609