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 6145-00-871-9112
NSN 5960-01-478-2672
NSN 5945-01-308-6555
NSN 5930-01-452-1843
NSN 5915-01-442-8785
NSN 5985-00-814-3849
NSN 6620-01-047-5831
NSN 6685-01-655-4393
NSN 2925-01-549-8053
NSN 6610-01-615-5765
NSN 6620-01-500-9847
NSN 5960-00-297-7099