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 5998-01-233-3464
NSN 4140-01-089-9724
NSN 6150-01-524-9097
NSN 6150-00-131-8424
NSN 6645-00-276-7544
NSN 5930-01-100-4643
NSN 6620-01-367-2597
NSN 5895-01-588-7531
NSN 5950-00-109-0692
NSN 6240-01-519-2935
NSN 6610-01-224-6396
NSN 5895-01-388-2728