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 2925-01-459-8093
NSN 5985-00-192-0384
NSN 5960-00-007-0872
NSN 6220-00-186-8565
NSN 5999-00-151-4062
NSN 5895-00-935-6168
NSN 5915-01-646-8685
NSN 5975-00-817-3728
NSN 5945-01-177-0585
NSN 6610-01-136-4421
NSN 4140-01-536-9823
NSN 2925-01-077-6867