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 6110-01-504-5747
NSN 5998-01-026-5599
NSN 5960-01-354-0762
NSN 5855-01-444-0588
NSN 6650-01-347-8075
NSN 5925-00-798-6767
NSN 5945-01-331-9561
NSN 5925-01-659-3045
NSN 6320-01-066-1766
NSN 5935-01-606-4243
NSN 6610-01-609-7776
NSN 6220-01-325-3960