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 6110-00-054-7278
NSN 6135-01-448-4680
NSN 5960-00-481-6677
NSN 5915-01-272-9593
NSN 6130-01-010-3254
NSN 6130-00-519-6192
NSN 5996-01-411-6122
NSN 5935-00-960-7793
NSN 6220-01-401-5337
NSN 6240-00-319-4549
NSN 6240-01-604-7896
NSN 5920-01-236-6780