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 5920-01-236-6780
NSN 6240-00-161-8099
NSN 5910-01-442-4122
NSN 5910-00-243-9425
NSN 6240-01-055-5193
NSN 5930-00-447-4251
NSN 5950-00-305-2802
NSN 5998-00-274-9695
NSN 5935-00-469-3711
NSN 2925-01-268-5464
NSN 5975-00-076-2503
NSN 5998-01-418-2522