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National Stock Number:
5310-00-722-6445
Federal Supply Class:
5310
National Item Identification Number:
007226445
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:
| 6-40139-1 | 0JRC1 | NORTHROP GRUMMAN TECHNICAL SERVICES, INC. | | 6-40139-1 | 76823 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| HOLE DIAMETER | 0.750 INCHES MINIMUM AND 0.760 INCHES MAXIMUM | | OUTSIDE DIAMETER | 1.125 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.215 INCHES NOMINAL | | MATERIAL | STEEL COMP 4130 OVERALL | | RECESS ANGLE | 110.0 DEGREES NOMINAL | | RECESS DIAMETER | 0.830 INCHES NOMINAL | | SPECIAL FEATURES | HEAT TREATMENT: TEMPER, PHYSICAL CONDITION F, SURFACE CONDITION 4 | | STYLE DESIGNATOR | RECESSED | | SURFACE FINISH | 63.0 MICROINCHES BOTTOM | | SURFACE FINISH | 63.0 MICROINCHES TOP | | SURFACE TREATMENT | CHROMIUM OVERALL |
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