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 5905-01-214-1756
NSN 7035-01-324-7796
NSN 5930-01-032-9176
NSN 5950-00-078-4433
NSN 5998-00-375-4259
NSN 7035-01-366-5912
NSN 5965-01-258-0731
NSN 7035-01-557-2779
NSN 2925-00-504-2363
NSN 5835-01-481-4204
NSN 2925-01-254-3068
NSN 5998-00-483-9171