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 6610-00-670-7803
NSN 7035-01-519-6779
NSN 5935-01-450-3884
NSN 4140-00-339-1514
NSN 6320-01-475-7654
NSN 5960-01-425-1454
NSN 6240-01-335-7725
NSN 5945-00-933-1676
NSN 5895-01-634-0630
NSN 6320-01-148-8125
NSN 4140-00-760-8920
NSN 6650-01-585-6067