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 5935-01-384-2197
NSN 6130-00-316-5509
NSN 5960-00-861-8369
NSN 5925-01-112-0320
NSN 6145-01-371-2916
NSN 6135-01-386-5709
NSN 5960-01-632-6576
NSN 5910-01-610-4240
NSN 6320-00-116-3658
NSN 5905-01-327-3678
NSN 5925-01-068-7906
NSN 5950-00-241-3787