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National Stock Number:
5310-01-146-9911
Federal Supply Class:
5310
National Item Identification Number:
011469911
Description:
WASHER,RECESSED
Detail:
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.
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Manufacturer Information:
| 65103-11527-101 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.631 INCHES MINIMUM AND 0.643 INCHES MAXIMUM | | OUTSIDE DIAMETER | 1.062 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18729,COND ANNEALED MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000,COND ANNEALED MIL SPEC 2ND MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM | | MATERIAL | STEEL COMP 4130 OR STEEL COMP E4340 OVERALL | | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH | | RECESS ANGLE | 90.0 DEGREES NOMINAL | | RECESS DIAMETER | 0.775 INCHES NOMINAL | | SPECIAL FEATURES | OUTSIDE TAB WITH LENGTH 0.719 IN. AND WIRE HOLE DIA 0.204 IN. | | STYLE DESIGNATOR | RECESSED | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
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