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 6105-00-103-8594
NSN 5895-00-042-5719
NSN 2925-01-446-6523
NSN 5935-00-717-7856
NSN 6110-00-226-3148
NSN 5990-00-022-8146
NSN 6110-01-085-5172
NSN 6620-01-502-9104
NSN 5925-01-354-4064
NSN 6240-01-360-0225
NSN 5996-01-270-5095
NSN 5985-01-252-8822