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 5996-01-383-7298
NSN 6130-00-406-2616
NSN 6650-01-660-5441
NSN 5990-01-374-3877
NSN 5999-01-461-9380
NSN 6610-00-814-0569
NSN 6620-00-838-6954
NSN 5960-01-415-3574
NSN 5950-01-565-6249
NSN 6620-00-246-5159
NSN 6135-01-451-2120
NSN 5975-01-006-0889