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 6130-01-062-4292
NSN 6145-01-067-4662
NSN 5915-01-540-6150
NSN 6610-01-294-5666
NSN 4140-01-199-3590
NSN 2925-01-500-4952
NSN 4140-00-211-5970
NSN 5925-01-017-5772
NSN 5855-01-103-1474
NSN 4140-01-632-0440
NSN 5905-01-274-4297
NSN 6620-01-570-4026