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 6150-01-589-3619
NSN 6105-00-225-8745
NSN 5996-01-100-4361
NSN 6150-01-383-7068
NSN 2925-01-303-5266
NSN 6685-01-547-9935
NSN 6130-01-570-0004
NSN 5950-00-286-3301
NSN 6685-00-972-3246
NSN 5835-00-617-3578
NSN 6110-00-293-6816
NSN 5855-01-631-5051