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 6240-01-382-0453
NSN 6105-01-037-3893
NSN 6320-01-388-3125
NSN 5905-01-270-4056
NSN 6130-01-145-4924
NSN 6320-01-312-3620
NSN 6240-00-778-5779
NSN 6240-01-401-5340
NSN 5910-00-954-0270
NSN 5925-01-491-2982
NSN 6650-01-254-9803
NSN 5920-01-157-2767