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 6620-01-125-0794
NSN 6130-01-651-9180
NSN 5835-01-337-8635
NSN 5975-01-628-3177
NSN 6135-01-386-5709
NSN 6685-00-153-3914
NSN 6220-01-085-4463
NSN 5910-01-479-0182
NSN 5905-00-782-0341
NSN 5945-00-628-7494
NSN 4140-00-963-8285
NSN 6130-01-196-4545