5340-00-915-8122 INSERT,SCREW THREAD Index 5305-00-915-8128 SETSCREW

National Stock Number:
5310-00-915-8126

Federal Supply Class:
5310

National Item Identification Number:
009158126

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:
LD153-0016-100643999THE BOEING COMPANY


Techincal Specification:
HOLE DIAMETER0.378 INCHES MINIMUM AND 0.388 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-18729,COND N MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-S-6758,COND D1 OR D4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM
MATERIALSTEEL COMP 4130 OVERALL
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
OUTSIDE DIAMETER0.750 INCHES NOMINAL
RECESS ANGLE90.0 DEGREES NOMINAL
RECESS DIAMETER0.483 INCHES MINIMUM AND 0.495 INCHES MAXIMUM
SPECIFICATION/STANDARD DATA43999-LD153-0016 MANUFACTURERS STANDARD
STYLE DESIGNATORRECESSED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONLA0109-005,FSCM 43999 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTNICKEL OR ZINC OVERALL


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