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 6610-00-837-3012
NSN 6610-01-119-0662
NSN 6110-00-484-2368
NSN 5999-01-468-9433
NSN 6150-01-022-6163
NSN 5910-00-085-2794
NSN 5945-01-556-1622
NSN 5930-01-352-0473
NSN 5975-01-436-4540
NSN 5950-01-225-9858
NSN 7035-01-193-2667
NSN 6610-00-553-5103