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 6610-01-646-1609
NSN 6130-00-879-0916
NSN 6130-01-306-8310
NSN 5855-01-147-4785
NSN 5925-01-345-3777
NSN 5965-00-978-8535
NSN 5975-01-435-4899
NSN 6130-01-039-2899
NSN 5910-00-340-1802
NSN 6145-01-393-0891
NSN 5999-01-424-6273
NSN 5945-01-015-9000