5133-01-066-9074 COUNTERSINK Index 4820-01-066-9077 VALVE,VENT

National Stock Number:
5310-01-066-9076

Federal Supply Class:
5310

National Item Identification Number:
010669076

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:
10368745A486GNIMIKKEISTOKESKUS NCB FINLAND
9387511202S4080PILATUS AIRCRAFT LTD
MS14155-580205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
MS14155-596906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
BOTTOM RECESS ANGLE90.0 DEGREES NOMINAL
BOTTOM RECESS DIAMETER0.399 INCHES MINIMUM AND 0.409 INCHES MAXIMUM
HARDNESS RATING39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
HOLE DIAMETER0.314 INCHES MINIMUM AND 0.318 INCHES MAXIMUM
OUTSIDE DIAMETER0.610 INCHES MINIMUM AND 0.620 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5059,TY 302,1/2 HARD MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-18729 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.114 INCHES MINIMUM AND 0.124 INCHES MAXIMUM
MATERIALSTEEL COMP 4130 OVERALL
STYLE DESIGNATORRECESSED BOTH SIDES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
TOP RECESS ANGLE90.0 DEGREES NOMINAL
TOP RECESS DIAMETER0.399 INCHES MINIMUM AND 0.409 INCHES MAXIMUM


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