Product Details | THUMBSCREW

5305-00-568-8571 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: 8174345, 5305-00-568-8571, 00-568-8571, 5305005688571, 005688571

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-568-8571

Drawings & Photos | NSN 5305-00-568-8571


Cross Reference | NSN 5305-00-568-8571

Part Number Cage Code Manufacturer
8174345 18876 U S ARMY AVIATION AND MISSILE COMMAND

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Technical Data | NSN 5305-00-568-8571

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 0.734 INCHES MINIMUM AND 0.766 INCHES MAXIMUM
FASTENER LENGTH 16.797 INCHES MINIMUM AND 16.828 INCHES MAXIMUM
MATERIAL STEEL COMP 416 OR STEEL COMP 1117 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-764 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-637 FED SPEC 2ND MATERIAL RESPONSE OVERALL
HEAD STYLE C67 KNURLED NO. 2
HEAD DIAMETER 1.250 INCHES NOMINAL
HEAD HEIGHT 0.625 INCHES NOMINAL
POINT STYLE F1 FLAT
POINT LENGTH 0.125 INCHES NOMINAL
POINT CHAMFER ANGLE 90.0 DEGREES NOMINAL
MANUFACTURERS CODE 18876
DESIGN CONTROL REFERENCE 8174345

Restrictions/Controls & Freight Information | NSN 5305-00-568-8571

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
NMF Description 093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3)
Less than car load rating U 50
Less than truck load rating W Rating Variable
Water commodity Code 713 unknown
Originating Activity Code XX
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable