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 6130-01-072-5185
NSN 6135-01-398-5922
NSN 5855-00-951-6483
NSN 6685-00-952-2027
NSN 5996-01-467-1592
NSN 5960-01-472-5263
NSN 5920-01-378-3869
NSN 6110-01-633-9660
NSN 5935-01-605-1566
NSN 5960-01-495-0859
NSN 5998-00-522-0671
NSN 4140-01-299-3357