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 5985-00-708-3705
NSN 6645-01-643-7151
NSN 6240-00-094-7724
NSN 5965-01-024-2154
NSN 6610-01-316-3547
NSN 6320-01-523-4954
NSN 5855-01-492-6913
NSN 5905-01-198-1695
NSN 6645-01-270-3176
NSN 5996-00-489-0595
NSN 5950-01-025-9233
NSN 5950-00-369-1593