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 5965-00-735-9315
NSN 5930-00-698-0424
NSN 6150-01-150-8074
NSN 5905-01-132-9782
NSN 5925-01-596-2796
NSN 5960-01-388-4951
NSN 6130-01-506-1084
NSN 6135-01-477-5259
NSN 5945-00-856-1924
NSN 5975-01-019-1553
NSN 5960-00-226-2386
NSN 5999-00-286-6231