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 6130-01-441-2326
NSN 5998-00-394-7118
NSN 5920-01-424-8094
NSN 5975-01-100-1822
NSN 5950-00-022-6924
NSN 6650-01-555-6661
NSN 6105-01-339-4318
NSN 5905-00-066-0067
NSN 6320-01-185-3857
NSN 5945-00-387-3246
NSN 5935-01-056-5494
NSN 6610-01-036-8225