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 5925-01-354-3573
NSN 6610-00-367-9603
NSN 5996-01-647-1027
NSN 6650-01-027-3632
NSN 2925-01-100-3694
NSN 6620-00-148-8307
NSN 6105-01-233-7881
NSN 5910-00-035-5534
NSN 5990-01-347-1478
NSN 5965-01-604-8548
NSN 5975-00-408-3634
NSN 5930-01-145-2163