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 5835-00-213-9811
NSN 5895-01-420-3439
NSN 5960-01-536-9763
NSN 5945-01-220-2615
NSN 5930-01-556-7138
NSN 5996-00-820-4703
NSN 6620-00-212-6921
NSN 5920-01-417-5350
NSN 6130-01-447-3164
NSN 5925-01-156-4426
NSN 5910-01-297-7201
NSN 6145-01-078-1004