5310-01-266-4060 WASHER,FLAT Index 5331-01-266-4062 O-RING

National Stock Number:
5310-01-266-4061

Federal Supply Class:
5310

National Item Identification Number:
012664061

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:
4M335-60PXV4THE BOEING COMPANY
4M335-628548FABRICATION SPECIALTY INC
4M335-676301THE BOEING COMPANY
T4M335-659570TRICO MANUFACTURING INC.


Techincal Specification:
HOLE DIAMETER0.390 INCHES MINIMUM AND 0.420 INCHES MAXIMUM
OUTSIDE DIAMETER0.720 INCHES MINIMUM AND 0.780 INCHES MAXIMUM
OVERALL HEIGHT0.059 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5059,COND A MIL SPEC 1ST MATERIAL RESPONSE OR QQ-S-766,COND A FED SPEC 2ND MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.016 INCHES NOMINAL
MATERIALSTEEL COMP 302 OR STEEL COMP 304 OVERALL
RECESS ANGLE99.0 DEGREES MINIMUM AND 100.3 DEGREES MAXIMUM
RECESS DIAMETER0.507 INCHES MINIMUM AND 0.517 INCHES MAXIMUM
STYLE DESIGNATORFINISHING
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL


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