| FIRST LEG ANGLE | 90.0 DEGREES NOMINAL |
| FIRST LEG DISTANCE BETWEEN FIRST AND SECOND HOLE CENTERS ALONG WIDTH | 1.906 INCHES NOMINAL |
| FIRST LEG DISTANCE FROM EDGE TO HOLE CENTER ALONG WIDTH | 3.332 INCHES NOMINAL |
| FIRST LEG HOLE ARRANGEMENT STYLE | FOUR HOLES |
| FIRST LEG HOLE DIAMETER | 0.201 INCHES MINIMUM AND 0.207 INCHES MAXIMUM |
| FIRST LEG DISTANCE BETWEEN HOLE CENTERS ALONG WIDTH | 10.000 INCHES NOMINAL |
| FIRST LEG DISTANCE BETWEEN SECOND AND THIRD HOLE CENTERS ALONG WIDTH | 6.188 INCHES NOMINAL |
| FIRST LEG DISTANCE FROM EDGE TO HOLE CENTER ALONG LENGTH | 0.094 INCHES NOMINAL |
| FIRST LEG STYLE | SQUARE |
| FIRST LEG THICKNESS | 0.125 INCHES NOMINAL |
| FIRST LEG WIDTH | 18.540 INCHES MINIMUM AND 18.570 INCHES MAXIMUM |
| FIRST LEG LENGTH | 0.781 INCHES NOMINAL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BRACKET, LOWER, SONAR, CENTER RACK |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B209, TEMPER H32 ASSN STD SINGLE MATERIAL RESPONSE |
| MATERIAL | ALUMINUM ALLOY 5052 |
| MOUNTING HOLE TYPE | PLAIN |
| SECOND LEG DISTANCE BETWEEN HOLE CENTERS ALONG LENGTH | 1.125 INCHES NOMINAL |
| SECOND LEG DISTANCE FROM EDGE TO HOLE CENTER ALONG WIDTH | 4.477 INCHES NOMINAL |
| SECOND LEG HOLE ARRANGEMENT STYLE | FOUR HOLES |
| SECOND LEG HOLE DIAMETER | 0.201 INCHES MINIMUM AND 0.207 INCHES MAXIMUM |
| SECOND LEG DISTANCE BETWEEN HOLE CENTERS ALONG WIDTH | 8.000 INCHES NOMINAL |
| SECOND LEG DISTANCE FROM EDGE TO HOLE CENTER ALONG LENGTH | 3.358 INCHES NOMINAL |
| SECOND LEG THICKNESS | 0.125 INCHES NOMINAL |
| SECOND LEG WIDTH | 18.540 INCHES MINIMUM AND 18.570 INCHES MAXIMUM |
| SECOND LEG LENGTH | 8.750 INCHES NOMINAL |
| SECOND LEG RELATIONSHIP TO FIRST LEG | NOT IDENTICAL |
| SECOND LEG STYLE | SQUARE |
| SPECIAL FEATURES | FIRST LEG HAS 3 SLOTS, 0.500 W, OPEN ON BOTTOM EDGE; 2ND LEG HAS ANOTHER ROW OF HOLES WITH SAME DIAMETER AS FIRST 2 ROWS, CENTERED 1.063 FROM RT. EDGE AND 4.266 & 5.391 FROM TOP EDGE; 2ND LEG HAS 2 LARGE CUTOUTS: AN OVAL, 3.00W X 5.5 H CENTERED ON RIGHT SIDE BETWEEN CENTER AND RIGHT ROWS OF HOLES AND A RECTANGULAR CUTOUT WITH ROUNDED CORNERS, 5.0 W X 5.50 H, CENTERED BETWEEN CENTER AND LEFT ROWS OF HOLES; 2ND LEG HAS LIP WITH 4 HOLES, 1.20 W X 8.75 L ALONG THE UNDERSIDE OF RIGHT EDGE AND A LIP WITH 1 HOLE, 0.55 W X 2.25 L, AT FRONT ALONG TOP OF LEFT EDGE |
| STYLE DESIGNATOR | ANGLE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-5541, CLASS 1A FED SPEC SINGLE TREATMENT RESPONSE |
| SURFACE TREATMENT | CHROMATE |