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 5960-01-309-3896
NSN 6110-01-280-3871
NSN 5910-01-106-3261
NSN 2925-00-764-0167
NSN 6110-01-024-5785
NSN 6645-01-508-4012
NSN 5915-01-384-7760
NSN 2925-00-644-0028
NSN 5998-00-897-1720
NSN 5920-01-589-9313
NSN 5905-01-642-1428
NSN 5930-01-174-7562