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 5990-01-216-1276
NSN 6240-01-460-2097
NSN 6610-00-681-0590
NSN 5920-01-171-2946
NSN 6105-01-272-7021
NSN 6240-00-762-0795
NSN 2925-01-480-8273
NSN 6220-01-443-5310
NSN 6130-00-538-9798
NSN 6320-01-246-4390
NSN 6150-01-148-9076
NSN 6220-00-230-4705