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 5915-00-267-9857
NSN 7035-00-420-1310
NSN 5975-01-177-0438
NSN 6110-01-550-0320
NSN 6130-01-024-7375
NSN 6220-01-203-5986
NSN 6150-00-919-5930
NSN 5920-00-192-1723
NSN 5835-01-246-0972
NSN 5960-00-672-3836
NSN 5925-01-426-3767
NSN 5950-01-229-1804