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 5985-01-281-7333
NSN 5895-01-340-6332
NSN 5998-00-867-9185
NSN 5975-01-484-4768
NSN 5895-01-342-8758
NSN 6320-01-607-2978
NSN 6105-00-480-4831
NSN 5935-01-289-9586
NSN 5910-00-250-5906
NSN 6320-01-397-9995
NSN 6610-00-757-6058
NSN 5996-01-225-7939