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 5895-00-525-3295
NSN 6620-00-468-6059
NSN 6685-00-851-4135
NSN 6240-01-285-7616
NSN 6110-01-123-0446
NSN 5945-01-199-0269
NSN 6110-00-190-1260
NSN 5925-01-323-6491
NSN 5915-01-586-7934
NSN 6130-01-461-2954
NSN 6685-01-480-6593
NSN 5960-01-141-6489