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 5835-00-926-0195
NSN 6150-01-214-8691
NSN 5960-01-185-4216
NSN 5930-00-081-1910
NSN 6130-01-567-6179
NSN 6240-00-824-4678
NSN 5985-00-167-8522
NSN 5835-01-307-4512
NSN 5910-01-227-9204
NSN 6240-01-599-2679
NSN 6620-01-126-5504
NSN 5996-01-503-8589