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 5999-01-643-0430
NSN 6620-00-975-5159
NSN 5985-01-526-9271
NSN 5910-01-414-2640
NSN 6240-01-648-4399
NSN 6130-01-068-4301
NSN 6320-01-377-5701
NSN 6240-00-880-8700
NSN 6610-01-400-3880
NSN 5950-00-615-6535
NSN 5975-00-599-6690
NSN 6110-01-114-7896