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 7035-01-304-4138
NSN 6110-00-594-7640
NSN 5960-01-139-0293
NSN 5835-01-171-9126
NSN 5950-01-631-1299
NSN 5998-01-065-2393
NSN 6150-01-254-2764
NSN 5835-01-158-6878
NSN 5915-00-660-7185
NSN 6135-01-365-2707
NSN 2925-00-764-0167
NSN 5915-01-212-9590