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 5895-01-522-2810
NSN 5920-00-438-4973
NSN 7035-01-451-1618
NSN 5835-01-615-8864
NSN 6105-01-630-9813
NSN 5915-01-013-4085
NSN 5915-01-157-6207
NSN 5920-00-245-6434
NSN 6145-00-050-7410
NSN 5950-01-145-4510
NSN 5920-01-444-1397
NSN 6650-01-332-7634