5305-01-165-7529 THUMBSCREW Index 5305-01-165-7531 THUMBSCREW

National Stock Number:
5305-01-165-7530

Federal Supply Class:
5305

National Item Identification Number:
011657530

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:
74D240172-201176301THE BOEING COMPANY


Techincal Specification:
FASTENER LENGTH1.050 INCHES NOMINAL
HEAD DIAMETER0.620 INCHES NOMINAL
HEAD HEIGHT0.250 INCHES NOMINAL
HEAD STYLEKNURLED NO. 1
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 630 OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
POINT STYLEOVAL
SPECIAL FEATURESDIAMOND KNURLED HEAD
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.770 INCHES NOMINAL
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNJEF


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