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 5895-01-452-3852
NSN 5915-00-278-5561
NSN 5985-01-355-9748
NSN 6145-01-311-8785
NSN 5945-01-525-7677
NSN 5990-00-583-9920
NSN 6145-00-269-4271
NSN 5985-01-435-7088
NSN 5960-00-752-6175
NSN 6105-01-197-4905
NSN 5935-01-318-0092
NSN 5998-01-049-5426