| THREAD SERIES | UNJF |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | STEEL COMP 321 CHANNEL |
| IRON ALLOY 660 NUT |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5510 ASSN STD SINGLE MATERIAL RESPONSE CHANNEL |
| AMS5525 ASSN STD 1ST MATERIAL RESPONSE OR |
| AMS5735 ASSN STD 2ND MATERIAL RESPONSE NUT |
| SURFACE TREATMENT | PASSIVATE CHANNEL |
| NUT STYLE | GANG CHANNEL, SELF LOCKING |
| REMOVABLE NUT MANUFACTURER CODE | 76301 |
| REMOVABLE NUT MANUFACTURER PART NUMBER | ST3M445C4M4 |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| CHANNEL STYLE | STRAIGHT TYPE |
| OVERALL LENGTH | 3.800 INCHES NOMINAL |
| OVERALL WIDTH | 0.574 INCHES NOMINAL |
| ASSEMBLY OVERALL HEIGHT | 0.466 INCHES MINIMUM AND |
| 0.476 INCHES MAXIMUM |
| CHANNEL HEIGHT | 0.298 INCHES NOMINAL |
| NUT SPACING | 1.000 INCHES NOMINAL |
| NUT QUANTITY | 4 |
| NUT COUNTERBORE DEPTH | 0.250 INCHES NOMINAL FIRST END |
| COUNTERBORE DIAMETER | 0.254 INCHES NOMINAL FIRST END |
| COUNTERSINK ANGLE | 90.0 DEGREES NOMINAL FIRST END |
| LUBRICATION | DRY FILM LUBRICANT |
| TEMP RATING | 350.0 DEG FAHRENHEIT NOMINAL |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 76823 |
| DESIGN CONTROL REFERENCE | 74A321600-2039 |