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 5915-01-296-2204
NSN 5950-00-902-4977
NSN 5920-01-167-9026
NSN 5910-00-985-5185
NSN 7035-00-150-2379
NSN 5925-01-035-7440
NSN 5999-01-276-3028
NSN 6220-01-315-3347
NSN 5975-00-452-9315
NSN 4140-00-490-2666
NSN 5920-01-093-1081
NSN 6620-01-065-4527