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 5855-01-538-0789
NSN 6105-01-420-4561
NSN 6685-01-591-4647
NSN 5985-01-267-6647
NSN 6135-01-449-2144
NSN 6610-00-116-5725
NSN 4140-01-219-1192
NSN 5975-00-617-3458
NSN 5960-01-423-4240
NSN 5855-01-267-0733
NSN 6105-01-435-7959
NSN 6645-01-468-3397