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 5920-01-535-0796
NSN 6620-01-359-0476
NSN 5999-00-842-5419
NSN 5999-01-385-1233
NSN 5835-00-494-8419
NSN 5835-00-215-3769
NSN 6135-01-616-4950
NSN 5996-00-351-2369
NSN 6105-00-011-3671
NSN 6610-01-466-3983
NSN 5910-00-872-8401
NSN 5895-01-096-6906