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 5935-01-200-7948
NSN 5855-01-364-1005
NSN 5945-01-136-5359
NSN 5950-00-205-2932
NSN 5925-00-467-6213
NSN 5998-01-364-7626
NSN 6110-01-125-1660
NSN 5945-00-787-8764
NSN 5965-00-113-5187
NSN 4140-01-203-6091
NSN 5998-00-439-6205
NSN 5905-01-125-4339