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 5855-01-486-2346
NSN 6620-01-547-2086
NSN 5930-01-380-8701
NSN 2925-01-609-8464
NSN 5930-00-222-4721
NSN 5998-00-240-9857
NSN 5960-00-594-0824
NSN 5910-01-550-3373
NSN 5895-00-100-1216
NSN 6135-01-421-1052
NSN 5935-01-141-6708
NSN 6130-00-267-9970