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 5835-01-024-3653
NSN 5950-01-456-5660
NSN 6145-00-873-4808
NSN 6130-01-133-7877
NSN 5965-00-566-3860
NSN 5950-01-581-7278
NSN 6610-00-500-0180
NSN 5990-01-407-6615
NSN 6610-01-302-6347
NSN 5925-01-065-9765
NSN 6105-01-191-9720
NSN 5925-01-026-0891