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 2925-01-295-2017
NSN 6650-01-120-5906
NSN 5835-01-116-2369
NSN 5935-01-607-6946
NSN 6150-01-480-4225
NSN 6320-00-116-3658
NSN 6650-00-675-1370
NSN 7035-01-648-5040
NSN 5945-00-200-2311
NSN 6240-01-298-9258
NSN 5910-01-135-2779
NSN 5960-01-181-2143