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 5965-01-284-5076
NSN 5835-00-830-6416
NSN 5835-01-579-5941
NSN 4140-01-215-1125
NSN 5920-01-368-3720
NSN 5925-01-421-4473
NSN 6620-00-759-6646
NSN 5965-00-588-4885
NSN 6320-00-857-4073
NSN 5999-01-613-4180
NSN 5960-00-109-2806
NSN 5998-01-555-8124