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 7035-00-300-3208
NSN 5935-00-875-0729
NSN 5965-00-052-9184
NSN 6610-00-874-7304
NSN 5999-00-958-7769
NSN 6650-01-505-6431
NSN 5965-01-327-9234
NSN 7035-01-465-0391
NSN 5895-01-453-6606
NSN 6320-00-853-1920
NSN 5935-01-107-2580
NSN 6110-00-296-0500