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 5835-01-386-4027
NSN 5895-00-637-2658
NSN 6110-01-277-0602
NSN 6320-01-462-2295
NSN 6620-00-096-1658
NSN 5998-01-153-9260
NSN 5998-00-153-1378
NSN 5895-01-489-5673
NSN 6685-01-171-2000
NSN 6135-00-284-1406
NSN 5999-00-828-2805
NSN 5960-01-029-4253