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 6610-01-574-0050
NSN 5930-01-265-6888
NSN 6130-00-851-9713
NSN 6110-00-960-0018
NSN 5835-00-987-9341
NSN 6650-00-244-5648
NSN 6220-01-281-5464
NSN 6320-00-908-6841
NSN 4140-01-370-5609
NSN 5985-01-434-2570
NSN 5999-01-210-9124
NSN 5925-01-128-6405