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 6130-00-079-1269
NSN 5950-01-110-2413
NSN 5935-01-479-9154
NSN 5945-01-624-4591
NSN 5960-01-399-4327
NSN 4140-00-844-9436
NSN 4140-01-252-2534
NSN 2925-01-462-8593
NSN 6150-01-157-8726
NSN 5925-00-224-7474
NSN 6610-01-633-8931
NSN 5945-01-408-6578