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 5975-01-399-8564
NSN 6130-01-523-6104
NSN 6240-01-528-7108
NSN 6685-01-169-8760
NSN 6610-00-020-9894
NSN 5855-01-602-8518
NSN 6105-00-148-8279
NSN 5835-01-460-6054
NSN 5985-01-391-9896
NSN 6105-01-321-5639
NSN 5975-01-534-7598
NSN 5965-01-084-6921