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 6220-01-159-6059
NSN 5910-01-140-9744
NSN 5999-01-610-5787
NSN 4140-01-428-6331
NSN 5925-01-029-3483
NSN 2925-00-758-5728
NSN 6145-01-528-4650
NSN 6240-01-139-3377
NSN 6130-00-054-4394
NSN 6220-01-394-5263
NSN 6150-01-644-3815
NSN 6105-01-440-8795