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 6150-00-092-8470
NSN 5960-01-234-0926
NSN 6130-00-926-0860
NSN 5905-00-035-8981
NSN 5915-00-591-3789
NSN 5950-01-649-7024
NSN 5999-00-393-2811
NSN 6685-01-345-3399
NSN 6135-00-009-4100
NSN 7035-01-160-4423
NSN 5895-01-563-6718
NSN 5990-01-152-3974