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 5975-00-815-2160
NSN 6650-01-235-0981
NSN 5925-01-424-9720
NSN 6650-01-500-6294
NSN 6150-01-340-5493
NSN 5960-01-544-1273
NSN 5990-01-633-9503
NSN 5895-01-297-6684
NSN 6150-00-862-3247
NSN 5990-01-167-3030
NSN 7035-01-552-5836
NSN 6610-01-073-6469