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 5998-01-475-4946
NSN 5905-00-131-6468
NSN 5998-00-683-1333
NSN 5925-01-657-6068
NSN 6130-00-424-7085
NSN 5835-01-424-0054
NSN 6610-01-152-9240
NSN 5950-01-259-9159
NSN 6145-00-126-1606
NSN 6610-01-549-8006
NSN 6130-01-262-9195
NSN 5945-00-985-2724