5310-00-619-5275 NUT,SELF-LOCKING,HEXAGON Index 5310-00-619-5280 WASHER,SADDLE

National Stock Number:
5306-00-619-5276

Federal Supply Class:
5306

National Item Identification Number:
006195276

Description:
BOLT,MACHINE

Detail:
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.


Manufacturer Information:
72624698897LOCKHEED MARTIN CORP


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER1.719 INCHES NOMINAL FIRST HOLE
FASTENER LENGTH1.843 INCHES MINIMUM AND 1.890 INCHES MAXIMUM
FEATURES PROVIDEDFINISHED HEAD
GRIP LENGTH1.500 INCHES NOMINAL
HEAD HEIGHT0.188 INCHES NOMINAL
HEAD STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6049,COND D4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
MINIMUM TENSILE STRENGTH200000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.375 INCHES
SHANK UNTHREADED HOLE DIAMETER0.105 INCHES MINIMUM AND 0.110 INCHES MAXIMUM FIRST HOLE
WIDTH BETWEEN FLATS0.552 INCHES MINIMUM AND 0.564 INCHES MAXIMUM
SURFACE FINISH250.0 MICROINCHES HEAD
SURFACE FINISH250.0 MICROINCHES THREADS
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH0.343 INCHES MINIMUM AND 0.390 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH24


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