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 5975-01-646-7154
NSN 5996-00-765-1401
NSN 6685-01-078-2845
NSN 5930-00-250-5524
NSN 5985-01-089-1750
NSN 5990-01-357-2453
NSN 5965-01-566-9024
NSN 5935-01-411-5281
NSN 5835-01-498-9410
NSN 5895-01-249-4030
NSN 6610-01-096-7129
NSN 5945-01-144-1930