Product Description: Concentric hole depth: 1.620 inches, Concentric hole diameter: 0.249 inches to 0.255 inches
Product Description: Concentric hole depth: 1.620 inches, Concentric hole diameter: 0.249 inches to 0.255 inches
| Thread Class | 3a |
| Thread Direction | Right-hand |
| Thread Length | up to 0.247 inches |
| Fastener Length | 2.088 inches to 2.098 inches |
| Head Style | Hexagon |
| Head Height | 0.110 inches to 0.150 inches |
| Width Between Flats | 0.740 inches to 0.752 inches |
| Shoulder Diameter | 0.4995 inches to 0.5000 inches |
| Shoulder Length | 1.737 inches to 1.747 inches |
| Shank Unthreaded Hole Diameter | at least 0.106 inches first hole and up to 0.116 inches first hole |
| Concentric Hole Depth | 1.620 inches |
| Concentric Hole Diameter | 0.249 inches to 0.255 inches |
| Nominal Thread Diameter | 0.375 inches |
| Thread Quantity Per Inch | 24 |
| Hardness Rating | 39.0 rockwell c to 45.0 rockwell c |
| Distance From Head Largest Bearing Surface To Shank Hole Center | at least 1.968 inches first hole and up to 1.978 inches first hole |
| Material | Steel comp 410 |
| Surface Treatment | Passivate |
| Surface Treatment Document and Classification | Qq-p-35 fed spec single treatment response |
| Style Designator | Concentric hole unthreaded |
| Test Data Document | 81349-mil-i6868 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type d |
| Thread Series Designator | Unjf |
| Part Number | Manufacturer | |
|---|---|---|
| A51C43592-19 | Northrop Grumman Systems Corporation | Quote |
| A51C43592-19 | Northrop Grumman Systems Corporation | Quote |