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 6130-00-371-2749
NSN 6320-01-624-0193
NSN 5855-00-757-5149
NSN 5965-01-134-3949
NSN 5910-00-949-8001
NSN 6130-00-911-9563
NSN 5960-01-292-0027
NSN 5915-01-577-4016
NSN 6620-00-496-8697
NSN 6685-01-412-6442
NSN 5935-01-329-4367
NSN 6150-01-317-3639