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 5996-01-373-3436
NSN 5935-01-570-9275
NSN 7035-01-364-8454
NSN 6145-01-342-6322
NSN 5960-01-512-0233
NSN 5985-01-462-4435
NSN 6610-00-832-3134
NSN 6620-00-841-0346
NSN 2925-01-424-0235
NSN 5998-01-579-9881
NSN 6145-00-057-2483
NSN 6220-01-398-0614