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 5935-01-231-1715
NSN 5945-01-480-0930
NSN 5965-01-628-4346
NSN 6145-01-422-6059
NSN 5945-01-024-6180
NSN 5835-01-602-0311
NSN 5985-01-359-2605
NSN 5835-01-442-6482
NSN 5965-00-060-0090
NSN 6645-01-089-6459
NSN 6610-01-534-8433
NSN 5990-01-116-2181