5310-01-166-8578 NUT,SELF-LOCKING,HEXAGON Index 5310-01-166-8580 WASHER,RECESSED

National Stock Number:
5310-01-166-8579

Federal Supply Class:
5310

National Item Identification Number:
011668579

Description:
WASHER,SADDLE

Detail:
A WASHER WITH ONE SURFACE SHAPED TO FIT A SIMILARLY CURVED SURFACE, THE OTHER SURFACE OF THE WASHER BEING EITHER PARALLEL WITH THE SHAPED SURFACE OR IN THE FORM OF RAISED BOSS HAVING EITHER A FLAT BEARING SURFACE OR A RECESS DESIGNED FOR HOLDING A NUT. EXCLUDES WASHER (1), CONCAVE AND WASHER (1), CONVEX.


Manufacturer Information:
SS4411-08S32278286SIKORSKY AIRCRAFT CORPORATION


Techincal Specification:
HOLE DIAMETER0.250 INCHES MINIMUM AND 0.255 INCHES MAXIMUM
OVERALL LENGTH0.500 INCHES NOMINAL
OVERALL WIDTH0.500 INCHES NOMINAL
MATERIAL THICKNESS0.035 INCHES NOMINAL
MATERIALSTEEL COMP 4130 OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
SPECIAL FEATURESFOR 1/4 FASTENER SIZE,3 1116 IN. RADIUS
STYLE DESIGNATORSADDLE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL


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