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 6150-00-596-9882
NSN 5945-01-571-8594
NSN 6145-00-295-0906
NSN 5910-01-015-5711
NSN 4140-00-880-7804
NSN 5915-01-131-9139
NSN 5835-00-518-4507
NSN 6620-01-503-2667
NSN 5960-01-425-1454
NSN 5925-01-219-5828
NSN 5905-01-400-3589
NSN 5985-01-423-5162