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| PartNumber | 1688-440-SS | 1688-440-AL | 1688-440-N |
| Description | Standoffs & Spacers SS 4-40 3/4in 1/4in Round FEM Standoff | Standoffs & Spacers AL 4-40 3/4in 1/4in Round FEM Standoff | Standoffs & Spacers 1/4 RD FM S/O 3/4 4-40 NYLON |
| Manufacturer | RAF Electronic Hardware | RAF Electronic Hardware | RAF Electronic Hardware |
| Product Category | Standoffs & Spacers | Standoffs & Spacers | Standoffs & Spacers |
| RoHS | Y | Y | Y |
| Product | Standoffs | Standoffs | Standoffs |
| Type | Round | Round | Round |
| Thread Size | 4-40 | 4-40 | 4-40 |
| Length | 3/4 in | 3/4 in | 3/4 in |
| Material | Stainless Steel | Aluminum | Nylon |
| Outside Diameter | 1/4 in | 1/4 in | 1/4 in |
| Gender | Female | Female | Female |
| Brand | RAF Electronic Hardware | RAF Electronic Hardware | RAF Electronic Hardware |
| Product Type | Standoffs & Spacers | Standoffs & Spacers | Standoffs & Spacers |
| Factory Pack Quantity | 200 | 100 | 200 |
| Subcategory | Hardware | Hardware | Hardware |
| Part # Aliases | 1688-440-SS-0 | 1688-440-AL-0 | - |
| Unit Weight | 0.166400 oz | - | - |
| Plating | - | - | - |
| Color | - | - | - |
| Inside Diameter | - | - | - |
| Mounting Hole Size | - | - | - |