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 6650-01-462-5879
NSN 6650-00-369-1906
NSN 5905-01-608-6274
NSN 6240-01-199-7653
NSN 6685-01-650-3721
NSN 5855-01-103-8650
NSN 5835-00-160-0171
NSN 5950-00-413-8125
NSN 5975-01-327-7027
NSN 5999-00-938-9426
NSN 5996-01-208-5045
NSN 5930-00-892-1668