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 6105-00-367-1984
NSN 6105-00-913-3512
NSN 5998-00-097-6685
NSN 6105-00-957-2849
NSN 6135-01-142-6456
NSN 4140-00-391-9447
NSN 6135-01-201-5858
NSN 5835-01-442-6482
NSN 5975-01-469-5558
NSN 5998-01-384-4004
NSN 5895-00-732-2433
NSN 6685-00-494-9562