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 6105-00-679-7580
NSN 6105-00-369-1143
NSN 5945-01-170-4000
NSN 6620-01-346-9340
NSN 6645-01-254-0489
NSN 6220-01-255-8915
NSN 6610-01-653-5985
NSN 6645-00-869-0850
NSN 6220-01-262-0140
NSN 5975-01-483-8726
NSN 5996-00-149-1287
NSN 6220-01-047-7325