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 6130-00-958-9796
NSN 5910-01-439-8735
NSN 6620-00-893-1303
NSN 6220-01-230-0872
NSN 5960-01-310-2247
NSN 5985-00-776-5005
NSN 5915-01-407-1061
NSN 5920-00-998-2892
NSN 5996-01-568-0344
NSN 6685-01-589-5341
NSN 5990-01-338-2103
NSN 6240-01-271-6230