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 6135-01-205-5965
NSN 6320-01-054-3046
NSN 5910-00-151-7564
NSN 5915-01-407-7402
NSN 5960-00-932-3067
NSN 5855-01-366-2429
NSN 6240-00-770-7647
NSN 5855-01-223-0833
NSN 5998-01-418-0522
NSN 6220-01-494-9356
NSN 5999-01-334-4049
NSN 6105-01-530-3596