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 5965-01-408-1303
NSN 5925-01-442-8589
NSN 5895-01-086-8859
NSN 6685-01-592-4098
NSN 5935-01-253-0613
NSN 5930-01-504-4386
NSN 5910-00-900-3926
NSN 5895-01-067-8771
NSN 6620-00-273-8735
NSN 5965-00-228-8336
NSN 5895-00-295-3735
NSN 6130-00-958-1064