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 5975-01-642-0696
NSN 2925-00-113-1835
NSN 6145-01-087-4927
NSN 6145-01-549-6136
NSN 4140-01-292-2709
NSN 6145-01-158-2125
NSN 5960-01-312-1262
NSN 6610-01-149-0720
NSN 5965-01-209-2838
NSN 6105-00-149-7956
NSN 5895-01-100-3759
NSN 6620-00-873-9825