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 6645-01-327-2389
NSN 6145-00-107-7913
NSN 5950-01-321-1414
NSN 6145-01-387-9473
NSN 5920-01-050-6559
NSN 6220-01-634-0660
NSN 6150-01-452-5133
NSN 5960-01-166-7480
NSN 6650-00-539-7298
NSN 5925-01-443-6246
NSN 5985-01-450-6727
NSN 5960-00-978-4695