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 5960-01-322-4341
NSN 6135-00-826-0334
NSN 6240-01-458-4384
NSN 2925-01-255-6394
NSN 6685-01-264-4967
NSN 6220-00-051-4198
NSN 5990-01-374-3877
NSN 6320-01-573-6490
NSN 7035-01-378-9325
NSN 6320-01-021-6633
NSN 5835-00-233-6327
NSN 6110-01-121-8318