Product Details | THUMBSCREW

5305-00-253-1427 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).

Part Alternates: 5305-00-253-1427, 00-253-1427, 5305002531427, 002531427

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-253-1427

Drawings & Photos | NSN 5305-00-253-1427


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Technical Data | NSN 5305-00-253-1427

Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER 0.312 INCHES
THREAD QUANTITY PER INCH 18
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.750 INCHES MAXIMUM
FASTENER LENGTH 0.750 INCHES NOMINAL
MATERIAL STEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION SAE ASSN STD ALL MATERIAL RESPONSES OVERALL
HEAD STYLE C80 THUMB NO. 4
HEAD HEIGHT 0.625 INCHES NOMINAL
WIDTH BETWEEN FLATS 0.938 INCHES NOMINAL
POINT STYLE F19 FLAT

Restrictions/Controls & Freight Information | NSN 5305-00-253-1427

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information