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 5999-01-592-3349
NSN 6610-01-342-5952
NSN 2925-00-101-7972
NSN 5985-00-880-4093
NSN 5960-01-252-8821
NSN 7035-00-406-0568
NSN 5950-01-554-3697
NSN 6145-00-678-0429
NSN 6110-01-363-8818
NSN 6320-01-265-0665
NSN 5965-01-247-3676
NSN 5999-01-534-6696