5331-01-381-3876 O-RING Index 5310-01-381-3878 WASHER,FLAT

National Stock Number:
5310-01-381-3877

Federal Supply Class:
5310

National Item Identification Number:
013813877

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:
676-8937-00113499ROCKWELL COLLINS, INC.


Techincal Specification:
MATERIALSTEEL COMP 416 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A581 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND
32.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORRECESSED
HOLE DIAMETER0.153 INCHES MINIMUM AND
0.159 INCHES MAXIMUM
OUTSIDE DIAMETER0.279 INCHES MINIMUM AND
0.283 INCHES MAXIMUM
OVERALL HEIGHT0.060 INCHES NOMINAL
RECESS DIAMETER0.245 INCHES MINIMUM AND
0.255 INCHES MAXIMUM
RECESS DEPTH0.030 INCHES NOMINAL


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