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 5855-01-348-6690
NSN 6145-00-528-6467
NSN 5990-00-927-9751
NSN 6650-00-160-4288
NSN 6150-01-153-2796
NSN 5950-01-421-3169
NSN 5895-00-878-3531
NSN 6110-01-450-2792
NSN 5910-01-143-3708
NSN 6220-00-280-2880
NSN 5975-00-926-7563
NSN 5855-00-361-0167