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 5935-01-577-7402
NSN 2925-01-527-8745
NSN 5910-00-949-2413
NSN 2925-01-079-6229
NSN 5930-01-624-6854
NSN 6240-01-299-8933
NSN 6685-01-435-4366
NSN 5990-01-493-4039
NSN 2925-01-394-5650
NSN 6145-00-551-5288
NSN 5925-01-121-3435
NSN 6105-01-128-4682