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 5998-01-360-3807
NSN 7035-00-111-4389
NSN 6150-01-469-3089
NSN 5905-00-571-3058
NSN 5930-00-456-0725
NSN 6645-00-933-2170
NSN 7035-01-318-6578
NSN 6105-00-189-0515
NSN 5920-01-200-9318
NSN 5950-00-187-0232
NSN 5950-01-532-7890
NSN 4140-00-313-2358