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 6135-00-519-1325
NSN 6610-00-296-5007
NSN 5935-00-007-0842
NSN 6685-01-504-5235
NSN 5835-01-173-1578
NSN 6685-00-227-0212
NSN 6220-00-313-4386
NSN 6320-01-021-6633
NSN 5895-00-921-1628
NSN 6105-01-202-7288
NSN 5996-01-133-2478
NSN 7035-01-449-7605