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 5945-01-341-9424
NSN 5996-00-514-7678
NSN 5990-00-630-6154
NSN 6320-01-272-7072
NSN 5935-01-412-0240
NSN 4140-01-460-9575
NSN 4140-00-873-7587
NSN 6145-01-079-5569
NSN 2925-01-604-8984
NSN 5915-01-442-4245
NSN 5920-01-318-3025
NSN 5950-01-381-1324