5305-01-238-3185 SETSCREW Index 5306-01-238-3187 BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-238-3186

Federal Supply Class:
5305

National Item Identification Number:
012383186

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:
NAS1300C5T16D80205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE


Techincal Specification:
FASTENER LENGTH1.000 INCHES NOMINAL
HEAD HEIGHT0.750 INCHES MINIMUM AND 0.780 INCHES MAXIMUM
HEAD STYLETHUMB NO. 3
HOLE DIAMETER0.070 INCHES NOMINAL
HOLE CONFIGURATION STYLEROUND PERPENDICULAR
HOLE QUANTITY1
HOLE TYPEDRILLED
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 303 OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES
POINT STYLEFLAT
SPECIFICATION/STANDARD DATA80205-NAS1300 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
WIDTH BETWEEN FLATS0.667 INCHES MINIMUM AND 0.697 INCHES MAXIMUM
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.917 INCHES MAXIMUM
THREAD QUANTITY PER INCH24
THREAD SERIES DESIGNATORUNF


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