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 6145-01-459-9513
NSN 5950-01-487-8657
NSN 5985-01-158-9170
NSN 6150-00-182-7102
NSN 5935-00-187-0006
NSN 5999-00-399-1215
NSN 5930-01-247-2590
NSN 6610-00-028-2222
NSN 6130-01-395-2711
NSN 2925-01-629-9416
NSN 5930-00-009-0500
NSN 5960-00-410-8230