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 5905-00-222-1353
NSN 5996-01-079-7914
NSN 5935-01-364-0114
NSN 5920-01-176-1413
NSN 5950-00-559-1248
NSN 6645-01-390-6520
NSN 6240-01-143-8976
NSN 5999-00-822-2114
NSN 5998-00-130-8311
NSN 6130-01-202-8865
NSN 5975-00-374-5245
NSN 5835-00-943-2763