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 6150-00-147-8223
NSN 5855-01-281-6689
NSN 6150-01-133-7100
NSN 5945-01-225-0663
NSN 7035-00-403-5340
NSN 6150-00-935-8740
NSN 5930-00-119-8684
NSN 6685-01-018-0079
NSN 5999-01-250-6159
NSN 6620-01-226-8140
NSN 5985-01-094-5865
NSN 5935-00-052-4249