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 5855-01-069-4742
NSN 6110-00-271-9928
NSN 5975-01-163-8686
NSN 6105-00-243-9278
NSN 5945-01-055-7486
NSN 5975-01-365-7589
NSN 5975-01-220-0633
NSN 6620-01-391-4189
NSN 5835-01-373-9506
NSN 6685-00-358-8331
NSN 6220-00-935-6881
NSN 6240-00-057-9498