| APERTURE SHAPE | SPECIAL |
| LENGTH | 58.000 INCHES NOMINAL58.000 INCHES NOMINAL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | CHANNEL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM-B221, T H116 ASSN STD SINGLE MATERIAL RESPONSE |
| MATERIAL | ALUMINUM ALLOY 5456 |
| MOUNTING HOLE DIAMETER | 0.435 INCHES MINIMUM AND 0.444 INCHES MAXIMUM ALL HOLES |
| MOUNTING HOLE QUANTITY | 2 |
| MOUNTING HOLE TYPE | UNTHREADED |
| SHAPE | IRREGULAR |
| SPECIAL FEATURES | HAS 3 ANGLE BRACKETS; 5 BRACKETS, PIPE RACK ASSEMBLIES; AND 32 THREADED HOLES FOR HELICAL COIL INSERTS |
| WIDTH | 4.000 INCHES NOMINAL4.000 INCHES NOMINAL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625, TY 2, CL 2, BLACK MIL SPEC SINGLE TREATMENT RESPONSE |
| SURFACE TREATMENT | ANODIZE |
| THICKNESS | 2.250 INCHES NOMINAL2.250 INCHES NOMINAL |