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 5855-01-108-2044
NSN 6105-01-611-3999
NSN 6240-00-624-1752
NSN 5895-01-150-1918
NSN 6685-01-196-0854
NSN 5895-01-442-6403
NSN 6105-01-437-0493
NSN 5920-00-532-3926
NSN 5920-01-660-9295
NSN 5925-01-216-6397
NSN 6320-00-977-3930
NSN 5925-00-424-9301