5305-00-059-3677 SCREW,MACHINE Index 5320-00-059-3681 PIN-RIVET

National Stock Number:
5310-00-059-3678

Federal Supply Class:
5310

National Item Identification Number:
000593678

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.


Manufacturer Information:
123BM10274-126512NORTHROP GRUMMAN SYSTEMS CORPORATION
123BM10274-179RG9NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
HOLE DIAMETER0.327 INCHES NOMINAL
OUTSIDE DIAMETER0.567 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7720,COMP FM,COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.058 INCHES NOMINAL
MATERIALSTEEL OVERALL
RECESS ANGLE100.0 DEGREES NOMINAL
RECESS DIAMETER0.385 INCHES NOMINAL
STYLE DESIGNATORRECESSED
SURFACE TREATMENTPASSIVATE OVERALL


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