5305-01-127-2533 THUMBSCREW Index 5305-01-127-2535 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-127-2534

Federal Supply Class:
5305

National Item Identification Number:
011272534

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:
1304442718876U S ARMY AVIATION AND MISSILE COMMAND
1304442726772WEGO PRECISION MACHINE, INC.
1304442764609BANNER MACHINE COMPANY, INC.
130444278M850SHANNON MFG CO INC


Techincal Specification:
FASTENER LENGTH1.065 INCHES NOMINAL
HEAD HEIGHT0.790 INCHES NOMINAL
HEAD STYLEWING NO. 2
MATERIALSTEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
POINT LENGTH0.250 INCHES NOMINAL
POINT STYLEFLAT
POINT CHAMFER ANGLE90.0 DEGREES NOMINAL
POINT DIAMETER0.186 INCHES NOMINAL
WIDTH BETWEEN FLATS1.500 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-STD-186 MIL STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCHROMIUM OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2A
THREAD LENGTH0.560 INCHES NOMINAL
THREAD SERIES DESIGNATORUNC
THREAD QUANTITY PER INCH20


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