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 5835-01-360-2657
NSN 6320-01-325-1487
NSN 6105-01-579-3695
NSN 5895-01-078-0403
NSN 5920-01-153-7487
NSN 5975-00-244-0706
NSN 6620-01-102-0008
NSN 5920-00-011-8314
NSN 6150-01-323-5886
NSN 5985-01-207-7907
NSN 5910-01-386-7087
NSN 5905-01-384-7884