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 6220-01-469-6213
NSN 5935-00-104-7528
NSN 5996-01-178-7734
NSN 5996-00-185-1372
NSN 5920-00-076-9889
NSN 6220-01-628-3275
NSN 5905-01-339-0193
NSN 5950-01-364-0800
NSN 6685-00-949-4829
NSN 4140-01-278-4409
NSN 7035-01-455-3482
NSN 6130-01-542-5501