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 5950-01-121-2215
NSN 5835-01-626-9603
NSN 5965-01-209-2838
NSN 5920-01-274-8565
NSN 5910-00-460-4475
NSN 5985-00-863-5424
NSN 5925-01-514-7048
NSN 5935-01-272-4198
NSN 5945-01-634-0588
NSN 5945-00-474-2186
NSN 6610-00-008-4075
NSN 6240-01-315-3880