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 5985-01-147-9395
NSN 6610-00-038-1135
NSN 6150-01-181-6422
NSN 2925-00-293-7213
NSN 6650-00-150-6885
NSN 2925-01-633-4048
NSN 5905-01-288-6240
NSN 5930-01-617-9462
NSN 6240-01-014-7530
NSN 6145-00-891-6779
NSN 6145-01-160-2279
NSN 5935-00-869-8481