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National Stock Number:
5310-01-048-9746
Federal Supply Class:
5310
National Item Identification Number:
010489746
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:
| 65104-11038-109 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| HOLE DIAMETER | 1.010 INCHES MINIMUM AND 1.025 INCHES MAXIMUM | | OUTSIDE DIAMETER | 1.525 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | RECESS ANGLE | 90.0 DEGREES NOMINAL | | RECESS DIAMETER | 1.150 INCHES NOMINAL | | SPECIAL FEATURES | ONE SIDE FLATTED W/20.0 DEG BEVEL | | STYLE DESIGNATOR | RECESSED | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | SS8435,FSCM 78286 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL |
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