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 5935-00-146-0116
NSN 5985-01-526-6911
NSN 5999-01-103-3138
NSN 6105-01-618-4343
NSN 6110-01-562-0672
NSN 5945-01-054-1440
NSN 4140-01-299-6713
NSN 5930-01-373-6606
NSN 6105-01-042-9785
NSN 5975-01-642-2647
NSN 5960-01-495-0859
NSN 7035-01-384-7573