5310-01-044-5987 WASHER,FLAT Index 5320-01-044-5990 RIVET,TUBULAR

National Stock Number:
5310-01-044-5989

Federal Supply Class:
5310

National Item Identification Number:
010445989

Description:
WASHER,FINISHING

Detail:
A WASHER OR CONE OR DISK SHAPE WITH A CENTRALLY LOCATED HOLE, DESIGNED TO ACCOMMODATE A FLAT OR OVAL HEAD SCREW AND PROVIDE ADDITIONAL BEARING AREA ON THE MATERIAL BEING FASTENED. IT MAY OR MAY NOT HAVE A FLUSH FLANGE FEATURE.


Manufacturer Information:
GW10E1026512NORTHROP GRUMMAN SYSTEMS CORPORATION
GW10E1055482MOUNT LOK PRODUCTS INC


Techincal Specification:
COLORRED OVERALL
HOLE DIAMETER0.191 INCHES NOMINAL
OUTSIDE DIAMETER0.625 INCHES NOMINAL
OVERALL HEIGHT0.094 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/8,TEMPER H32 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.032 INCHES NOMINAL
MATERIALALUMINUM ALLOY 5052 OVERALL
RECESS ANGLE100.0 DEGREES NOMINAL
RECESS DIAMETER0.371 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
STYLE DESIGNATORFINISHING
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY 2,CL 1 MIL SPEC 1ST TREATMENT RESPONSE AND MIL-P-23377 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENTANODIZE AND PAINT OVERALL


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