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 6130-00-554-3691
NSN 6220-01-611-7723
NSN 6685-00-918-9308
NSN 5920-00-326-9901
NSN 5920-01-554-9804
NSN 6135-00-930-0810
NSN 5905-00-848-7604
NSN 5920-01-189-3125
NSN 5975-01-159-2149
NSN 5895-01-609-7068
NSN 6320-01-373-9355
NSN 5999-01-410-8774