| DOCUMENT TYPE | INDUSTRIAL DRAWING |
| COMPONENT DOCUMENT ORIGIN | INDUSTRIAL |
| CORNER RADIUS | 0.50 INCHES NOMINAL |
| HEAT TREATMENT | H-32 STRAIN HARDENED, STABILIZED TO 1/4 HARD |
| LENGTH | 5.25 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B209 ASSN STD SINGLE MATERIAL RESPONSE |
| MATERIAL | ALUMINUM ALLOY 5052 |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | PLATE,SUBFRAME MT,SPRT |
| PROPRIETARY CHARACTERISTICS | PACS |
| MOUNTING HOLE QUANTITY | 6 |
| MOUNTING HOLE TYPE | THRU HOLE |
| MOUNTING METHOD | SCREW |
| NEXT HIGHER ASSEMBLY DESIGN CONTROL ACTIVITY | 19207 |
| NEXT HIGHER ASSEMBLY IDENTIFICATION DESIGNATOR | P19R |
| NOMINAL HOLE DIAMETER AND QUANTITY | 0.375 INCHES TWO HOLES AND 0.688 INCHES FOUR HOLES |
| SHAPE | FLAT AND SQUARE |
| WIDTH | 4.75 INCHES NOMINAL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL DTL 5541,TYPE 2 CLASS 1A MIL STD 1ST TREATMENT RESPONSE AND MIL DTL 53022,TYPE 4 MIL STD 2ND TREATMENT RESPONSE OR TT-C-490,TYPE1 FED SPEC 1ST TREATMENT RESPONSE AND MIL DTL53084 MIL STD 2ND TREATMENT RESPONSE OR A-A 52474 COMMERCIAL ITEM DESCRIPTION 2ND TREATMENT RESPONSE |
| SURFACE TREATMENT | CHEMICAL AND PRIMER-HEXAVALENT CHROMIUM FREE AND PRIMER EPOXY-LEAD AND CHROMIUM FREE OR PHOSPHATE ZINC AND CATHODIC ELECTRODEPOSITION LEAD AND CHROMATE FREE |
| THICKNESS | 0.125 INCHES NOMINAL |
| USAGE DESIGN | FIRE FIGHTING TRUCK |