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 5910-01-582-2917
NSN 6145-00-112-8578
NSN 5965-01-341-1480
NSN 6240-01-327-4120
NSN 5996-01-181-2697
NSN 5905-01-081-7810
NSN 5975-01-111-7119
NSN 6130-01-188-7411
NSN 6110-01-443-3395
NSN 5905-01-247-3834
NSN 5998-01-183-7872
NSN 6610-01-557-1486