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 5998-01-649-1606
NSN 5935-00-545-1666
NSN 6105-00-231-4370
NSN 5855-01-519-3814
NSN 7035-00-167-7411
NSN 5835-01-532-9373
NSN 6620-01-101-4408
NSN 6110-01-586-2737
NSN 5999-01-426-8740
NSN 6145-01-575-0301
NSN 5960-01-210-0580
NSN 5925-01-503-1815