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 5965-00-052-7596
NSN 5920-00-499-8285
NSN 5990-01-065-0492
NSN 5996-01-281-7336
NSN 5910-00-400-7124
NSN 5935-00-453-1861
NSN 5945-01-078-0370
NSN 5930-01-044-7561
NSN 5999-01-409-2834
NSN 5945-00-087-9724
NSN 5935-00-995-5782
NSN 5910-01-229-5558