5315-00-484-6187 PIN,STRAIGHT,THREADED Index 5310-00-484-6189 NUT,PLAIN,HEXAGON

National Stock Number:
5305-00-484-6188

Federal Supply Class:
5305

National Item Identification Number:
004846188

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:
NAS1300C4T880205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE


Techincal Specification:
FASTENER LENGTH0.500 INCHES NOMINAL
HEAD HEIGHT0.605 INCHES MINIMUM AND 0.635 INCHES MAXIMUM
HEAD STYLETHUMB NO. 3
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 302 OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
POINT STYLEFLAT
WIDTH BETWEEN FLATS0.519 INCHES MINIMUM AND 0.549 INCHES MAXIMUM
SURFACE TREATMENTPASSIVATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2A
THREAD LENGTH0.429 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH28


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