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 5975-01-497-6895
NSN 6145-01-227-7792
NSN 6105-00-967-0397
NSN 6610-00-277-7206
NSN 6135-01-390-7364
NSN 5950-01-484-3753
NSN 5905-01-365-4783
NSN 5895-01-484-9666
NSN 5905-01-349-5586
NSN 5945-00-762-8215
NSN 5855-01-262-1766
NSN 6110-01-612-4461