5305-01-181-2486 SETSCREW Index 5306-01-181-2488 BOLT,SHEAR

National Stock Number:
5305-01-181-2487

Federal Supply Class:
5305

National Item Identification Number:
011812487

Description:
THUMBSCREW

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use SCREW (as modified) or BOLT (as modified).


Manufacturer Information:
5511086-00153711NAVAL SEA SYSTEMS COMMAND
5511087 ITEM 253711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.375 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.600 INCHES NOMINAL
FASTENER LENGTH1.500 INCHES NOMINAL
MATERIALSTEEL COMP 303 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HEAD STYLEKNURLED NO. 4
HEAD DIAMETER0.750 INCHES NOMINAL
HEAD HEIGHT0.750 INCHES NOMINAL
POINT STYLEFLAT
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FIRST DIAMETER FROM HEAD0.315 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.090 INCHES NOMINAL
SPECIAL FEATURESKNURL HEAD DIAMOND OR STRAIGHT


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