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 6110-00-121-0975
NSN 6220-00-583-9889
NSN 5835-01-464-2662
NSN 6685-01-512-1602
NSN 5996-01-388-3329
NSN 5935-01-157-5856
NSN 5935-01-113-2298
NSN 5935-01-484-9768
NSN 5950-00-633-8366
NSN 5999-00-054-5818
NSN 5998-01-214-1671
NSN 5998-00-810-8374