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 6110-01-633-9660
NSN 5975-00-050-3729
NSN 5965-00-877-9197
NSN 5965-00-988-8770
NSN 6130-01-560-2845
NSN 5910-01-559-9149
NSN 5960-01-218-2858
NSN 6320-00-343-1798
NSN 6610-00-658-2558
NSN 5950-01-517-1025
NSN 5915-01-442-4245
NSN 5975-00-480-7902