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 6685-00-847-8714
NSN 5996-01-302-4295
NSN 5895-01-360-5634
NSN 6620-01-426-2220
NSN 6220-01-392-5574
NSN 6240-00-299-3404
NSN 6610-01-599-4462
NSN 6320-01-233-5798
NSN 5975-00-244-0049
NSN 6105-00-051-1362
NSN 6650-00-067-3572
NSN 5950-00-016-8382