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 5998-01-047-8796
NSN 7035-01-165-0234
NSN 5855-00-247-7219
NSN 5895-00-543-2906
NSN 5930-01-448-5672
NSN 4140-01-473-9080
NSN 5985-01-119-8231
NSN 6685-01-359-2723
NSN 5998-01-406-8619
NSN 6105-00-487-1053
NSN 5835-00-025-9951
NSN 7035-01-338-2994