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 5895-01-427-3727
NSN 6105-01-159-0050
NSN 5975-00-678-5233
NSN 6105-01-089-9143
NSN 5950-01-237-5773
NSN 6135-01-462-0731
NSN 5895-00-316-5667
NSN 5985-01-378-7553
NSN 5996-01-573-6931
NSN 5945-01-065-0887
NSN 5945-01-163-3028
NSN 5925-01-510-6291