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 6620-00-302-5719
NSN 5960-01-543-0235
NSN 6145-00-847-4104
NSN 5975-00-440-5287
NSN 5965-01-408-6218
NSN 5920-01-102-3248
NSN 5996-01-123-9038
NSN 5960-01-170-4057
NSN 6105-00-237-3682
NSN 6685-01-406-5348
NSN 6320-01-530-4870
NSN 5910-01-353-0322