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 5895-01-411-8112
NSN 5835-00-126-2961
NSN 5990-01-100-1840
NSN 2925-01-592-5578
NSN 5915-01-457-8616
NSN 5960-01-505-2426
NSN 5965-01-215-0993
NSN 5990-01-605-4769
NSN 6150-01-209-6842
NSN 5855-01-484-9948
NSN 6620-01-391-7331
NSN 6150-01-649-3278