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 5985-01-222-9584
NSN 2925-01-412-9520
NSN 5998-01-472-3242
NSN 5910-01-232-0798
NSN 6105-01-103-3127
NSN 2925-01-228-4437
NSN 5895-00-679-9479
NSN 5895-01-483-7705
NSN 5855-01-528-8776
NSN 5925-01-294-3651
NSN 6240-01-235-2604
NSN 5945-00-840-9172