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 6685-00-184-3894
NSN 5985-01-381-1540
NSN 5960-00-054-3277
NSN 6240-01-338-4949
NSN 2925-01-542-1865
NSN 5965-01-631-8522
NSN 5960-01-248-4743
NSN 5950-01-450-5536
NSN 6620-01-601-7491
NSN 4140-01-005-0154
NSN 5960-00-300-2358
NSN 2925-01-510-9378