WASHER,RECESSED,
| MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | 96906 |
| HOLE DIAMETER | 0.314 INCHES MINIMUM AND 0.318 INCHES MAXIMUM |
| OUTSIDE DIAMETER | 0.588 INCHES MINIMUM AND 0.598 INCHES MAXIMUM |
| RECESS DIAMETER | 0.402 INCHES MINIMUM AND 0.412 INCHES MAXIMUM |
| MATERIAL THICKNESS | 0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM |
| END ITEM IDENTIFICATION | 1055-01-450-4243,MULTIPLE LAUNCH ROCKET SYSTEM (MLRS) |
| HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM |
| RECESS ANGLE | 45.0 DEGREES NOMINAL |
| SURFACE FINISH | 125.0 MICROINCHES ALL SURFACES |
| MATERIAL | STEEL COMP 630 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5604,17-4PH ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| STYLE DESIGNATOR | RECESSED |
| THREAD SERIES DESIGNATOR | UNJF |
| A WASHER OF ANY PERIPHERAL SHAPE HAVING A CENTRALLY LOCATED HOLE. BOTH BEARING SURFACES ARE PARALLEL AND FLAT, BUT ONE OR BOTH OF THE BEARING SURFACES MUST BE BROKEN BY A COUNTERBORE, COUNTERSINK, OR SIMILARLY SHAPED RECESS. THE THICKNESS MUST NOT EXCEED 25 PER CENT OF THE OUTSIDE DIAMETER OR THE LARGEST OUTSIDE DIMENSION. THE MAXIMUM LIMIT OF THE TOLERANCE OR RANGE APPLIED TO THE THICKNESS AND/OR LARGEST OUTSIDE DIMENSION MUST BE USED TO DETERMINE COMPLIANCE. EXCLUDES WASHER, CONCAVE, RETAINER, PACKING, AND THRUST TYPE WASHERS. SEE ALSO SPACER, SLEEVE; AND SPACER, STEPPED. |
