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 6650-01-559-7635
NSN 5915-00-396-1250
NSN 5975-01-244-7577
NSN 5855-00-004-0904
NSN 5960-01-360-4107
NSN 5855-01-406-7237
NSN 6130-01-291-9373
NSN 5855-00-138-2386
NSN 5985-01-500-2580
NSN 5985-00-899-6917
NSN 5965-01-036-1325
NSN 5935-01-204-6102