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 6320-01-600-5808
NSN 5999-00-189-1684
NSN 5855-01-468-9770
NSN 5895-01-632-1564
NSN 6110-01-471-2038
NSN 4140-01-296-9723
NSN 5998-01-424-7654
NSN 5975-01-329-6824
NSN 5990-01-516-9665
NSN 6620-01-479-7221
NSN 5996-01-595-6529
NSN 7035-01-442-7947