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 6685-01-351-4586
NSN 6130-00-133-5879
NSN 5985-01-303-0510
NSN 5915-01-264-8120
NSN 5990-01-463-2279
NSN 5996-00-162-6083
NSN 5965-01-337-1217
NSN 5990-01-383-9780
NSN 6220-00-932-4992
NSN 5950-01-498-1762
NSN 6145-01-323-2815
NSN 6130-01-465-1830