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 6105-01-418-0405
NSN 6610-01-474-4397
NSN 6130-01-228-7019
NSN 5999-01-076-8918
NSN 5855-01-115-9014
NSN 5990-01-443-2931
NSN 6220-00-287-9939
NSN 6110-01-394-5302
NSN 6135-01-282-4326
NSN 5925-01-471-7086
NSN 6130-01-616-5312
NSN 5998-00-518-5118