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 5950-00-427-5262
NSN 6105-00-479-8991
NSN 7035-01-085-5955
NSN 5895-01-648-6936
NSN 6145-01-424-6282
NSN 5996-00-899-8698
NSN 5855-01-295-2313
NSN 5835-01-608-8868
NSN 5975-00-902-1420
NSN 5990-00-241-3780
NSN 5895-01-395-7544
NSN 5915-01-560-5315