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 5895-01-229-0157
NSN 6610-00-822-0431
NSN 5855-01-464-3152
NSN 6105-01-290-0981
NSN 5999-00-050-2607
NSN 5905-01-298-5208
NSN 6645-01-356-8252
NSN 5975-00-882-1879
NSN 5996-01-463-3152
NSN 5935-01-211-8415
NSN 5950-01-024-4369
NSN 5895-00-809-4005