5305-00-638-1024 THUMBSCREW Index 5305-00-638-1032 THUMBSCREW

National Stock Number:
5305-00-638-1026

Federal Supply Class:
5305

National Item Identification Number:
006381026

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:
168055PC310001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER


Techincal Specification:
FASTENER LENGTH1.125 INCHES NOMINAL
HEAD HEIGHT0.562 INCHES MINIMUM AND 0.688 INCHES MAXIMUM
HEAD STYLEWING NO. 2
MATERIALSTEEL COMP 1040 OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES
POINT STYLEFLAT
WIDTH BETWEEN FLATS1.250 INCHES MINIMUM AND 1.312 INCHES MAXIMUM
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.844 INCHES MINIMUM
THREAD QUANTITY PER INCH18
THREAD SERIES DESIGNATORUNC


Click here to Register for Free 30-day Trial