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 5930-00-725-1461
NSN 5960-01-374-9706
NSN 5915-00-753-9636
NSN 5945-01-158-8229
NSN 5996-01-118-9475
NSN 5895-01-505-3280
NSN 6685-00-897-4409
NSN 6320-01-006-6138
NSN 6130-01-583-1220
NSN 2925-00-707-6770
NSN 6220-01-564-9200
NSN 5935-00-924-4639