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 6105-00-022-3333
NSN 6130-01-067-7205
NSN 5960-01-120-2170
NSN 2925-00-953-2920
NSN 5855-01-018-1247
NSN 6610-01-537-1685
NSN 5996-01-398-8197
NSN 6610-01-564-7464
NSN 5990-01-294-6198
NSN 4140-00-017-2548
NSN 6110-01-233-1532
NSN 5835-01-056-9303