Min tensile strength to be 2000 psi
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 5910-00-090-3779
NSN 5990-01-390-2177
NSN 6150-01-215-2181
NSN 5920-01-476-2448
NSN 6320-01-462-3555
NSN 5945-00-902-4232
NSN 5990-01-168-6797
NSN 6320-00-937-5625
NSN 5965-00-578-1438
NSN 6145-00-224-5245
NSN 5855-00-149-0766
NSN 5925-01-437-9172