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 5835-01-203-8295
NSN 4140-01-046-7523
NSN 6110-01-045-3256
NSN 5905-01-486-1101
NSN 7035-01-063-0453
NSN 5996-01-560-2777
NSN 5998-01-407-6883
NSN 6610-01-336-2787
NSN 5905-01-094-3642
NSN 5996-01-048-5196
NSN 6240-01-384-3887
NSN 5950-01-628-0543