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 5960-01-370-4285
NSN 6110-00-073-8007
NSN 5996-01-161-9408
NSN 5960-00-099-9790
NSN 5960-01-265-0354
NSN 6610-01-098-5723
NSN 6645-00-569-1759
NSN 5945-01-147-5727
NSN 6145-01-355-7192
NSN 5945-01-064-0684
NSN 5930-00-156-6252
NSN 5910-00-682-0746