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 5895-00-318-8719
NSN 5935-01-216-2067
NSN 5895-00-823-8571
NSN 5975-01-166-1788
NSN 5895-00-736-8814
NSN 5945-01-065-3710
NSN 6610-01-549-8006
NSN 5950-01-577-0001
NSN 5996-01-483-0645
NSN 4140-01-197-9883
NSN 5945-00-719-5821
NSN 6135-01-100-3593