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 7035-00-884-8366
NSN 6150-01-123-5417
NSN 5998-00-409-3197
NSN 6240-01-304-2798
NSN 6620-00-654-3738
NSN 6240-01-234-7893
NSN 6105-01-573-9515
NSN 5985-00-918-8298
NSN 5930-00-589-7628
NSN 5910-00-356-7710
NSN 6645-00-107-8190
NSN 7035-00-541-8516