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 5945-01-592-3379
NSN 5996-01-278-7225
NSN 5925-01-472-7344
NSN 5960-00-020-5196
NSN 5855-01-655-4035
NSN 5910-01-111-6710
NSN 6110-00-196-8813
NSN 6130-00-591-7988
NSN 6610-01-616-3070
NSN 6220-00-878-4802
NSN 6145-00-112-9476
NSN 5920-01-090-8652