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 5915-01-167-9072
NSN 5895-00-925-2423
NSN 5999-00-290-5898
NSN 5915-01-482-8377
NSN 2925-00-105-3907
NSN 5945-00-459-4276
NSN 6130-01-494-3885
NSN 6105-01-629-4302
NSN 6135-01-388-2761
NSN 5915-00-548-1859
NSN 5935-00-409-1091
NSN 5925-00-443-9478