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 7035-00-830-1235
NSN 6150-01-393-5133
NSN 6650-00-670-2516
NSN 6320-00-908-6841
NSN 5996-01-600-5969
NSN 5990-00-932-3070
NSN 5925-01-307-2363
NSN 5935-01-591-6063
NSN 6220-00-558-2147
NSN 5855-01-486-7538
NSN 5935-01-089-9981
NSN 5960-00-007-7071