5310-01-434-4273 WASHER,RECESSED Index 5310-01-434-4275 WASHER,FLAT

National Stock Number:
5310-01-434-4274

Federal Supply Class:
5310

National Item Identification Number:
014344274

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:
BACW10AW-C306S81205THE BOEING COMPANY


Techincal Specification:
MATERIALSTEEL COMP 1020 OR
STEEL COMP 1025 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7952 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND
CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416, TY 2, CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORRECESSED
HOLE DIAMETER0.426 INCHES MINIMUM AND
0.436 INCHES MAXIMUM
OUTSIDE DIAMETER0.740 INCHES MINIMUM AND
0.760 INCHES MAXIMUM
RECESS DIAMETER0.426 INCHES MINIMUM AND
0.436 INCHES MAXIMUM
MATERIAL THICKNESS0.040 INCHES NOMINAL
RECESS ANGLE90.0 DEGREES NOMINAL


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