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 6150-01-267-7382
NSN 5920-00-529-0618
NSN 5920-01-373-9405
NSN 5905-01-212-7993
NSN 6105-01-332-4218
NSN 6220-01-081-3283
NSN 6150-00-494-5519
NSN 5910-01-589-6019
NSN 5915-00-847-7890
NSN 6135-00-134-6648
NSN 6130-01-203-5095
NSN 6130-00-327-9332