| MATERIAL | STEEL OVERALL |
| SURFACE TREATMENT | CHROMIUM OVERALL |
| STYLE DESIGNATOR | FIXED T-HANDLE |
| WRENCHING SURFACE SIZE | 0.500 INCHES NOMINAL FIRST END |
| WRENCHING SURFACE SHAPE | SPLINE FIRST END EXTERNAL |
| DRIVE END SHAPE | ROUND SECOND END EXTERNAL |
| SPECIAL FEATURES | FOR JACOBS MFG COCHUCK NO. 3,0-1/2 IN. CAPACITY |
| DEPARTURE FROM CITED DOCUMENT | AS MODIFIED BYGGG-C-350,PARAGRAPH 3.13.1.6,KEYS |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 58536 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | A-A-51140 |