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National Stock Number:
5310-00-400-3445
Federal Supply Class:
5310
National Item Identification Number:
004003445
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:
| LS9851-8C | 98897 | LOCKHEED MARTIN CORP |
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Techincal Specification:
| MATERIAL | STEEL COMP 4130 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OR | | MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | STYLE DESIGNATOR | RECESSED | | HOLE DIAMETER | 0.501 INCHES MINIMUM AND | | 0.505 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.940 INCHES MINIMUM AND | | 0.950 INCHES MAXIMUM | | RECESS DIAMETER | 0.617 INCHES MINIMUM AND | | 0.627 INCHES MAXIMUM | | MATERIAL THICKNESS | 0.068 INCHES MINIMUM AND | | 0.088 INCHES MAXIMUM | | RECESS ANGLE | 80.0 DEGREES MINIMUM AND | | 100.0 DEGREES MAXIMUM | | MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 98897 | | DESIGN CONTROL REFERENCE | LS9851-8C |
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