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 6110-00-409-7019
NSN 6130-00-461-8634
NSN 5905-01-329-3248
NSN 6240-01-054-0067
NSN 6240-00-243-0340
NSN 6650-01-135-7472
NSN 5835-01-575-1778
NSN 5999-01-288-4747
NSN 6135-01-051-7836
NSN 6320-00-500-0613
NSN 5895-01-020-7771
NSN 6150-01-391-1321