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 5945-00-811-5475
NSN 5960-01-512-0233
NSN 6240-01-348-0057
NSN 5950-00-682-5379
NSN 6150-01-138-6210
NSN 6685-01-082-3485
NSN 6320-01-399-6177
NSN 5855-01-642-1552
NSN 6110-00-269-2696
NSN 5985-01-339-2858
NSN 6610-00-427-9217
NSN 5975-00-198-8763