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 6105-01-555-7874
NSN 6130-01-584-7861
NSN 5910-01-024-9571
NSN 5905-01-593-8822
NSN 5960-01-103-0906
NSN 5950-01-422-0467
NSN 6135-01-100-3593
NSN 5910-01-451-4292
NSN 5855-01-351-6875
NSN 5945-01-403-2800
NSN 6130-01-042-0788
NSN 4140-01-573-8264