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 6135-00-194-9354
NSN 5990-01-632-0969
NSN 5930-01-179-3262
NSN 5998-01-106-8999
NSN 5835-01-398-3859
NSN 5985-01-563-8110
NSN 5998-01-295-3975
NSN 5996-00-009-9343
NSN 5855-01-218-3735
NSN 5996-00-975-2789
NSN 5965-00-372-2537
NSN 5895-01-563-8458