Product Details | PANEL SCREW ASSEMBLY

5305-01-256-5802 A headed, threaded fastening device over which may be assembled; (1) a stand-off; (2) a flanged bushing with washer(s) and/or a shouldered bushing without a flange, or it may have an internally threaded sleeve that is an integral part of the screw; a washer and an externally thread self-locking bushing that is driven by an inserted driver. Attached to panel by threaded bushing or by flaring end of stand-off, or bushing. Used in conjunction with a speed nut, nut plate, or driven into a threaded hole in the item that the panel is fastened to. May be spring loaded.

Part Alternates: F7500M4B4, F7500-M4-B-4, 5305-01-256-5802, 01-256-5802, 5305012565802, 012565802

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 06 JUN 1987 01-256-5802

Drawings & Photos | NSN 5305-01-256-5802


Demand History | NSN 5305-01-256-5802

Part Number Request Date QTY Origin
F7500M4B4 2010-09-270 10 United States

Cross Reference | NSN 5305-01-256-5802

Part Number Cage Code Manufacturer
F7500-M4-B-4 17446 HUCK INTERNATIONAL, INC. DBA ALCOA FASTENING SYSTEMS
F7500-M4-B-4 97928 HUCK INTL INC

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Technical Data | NSN 5305-01-256-5802

Characteristic Specifications
THREAD SERIES DESIGNATOR M
NOMINAL THREAD DIAMETER 4.0 MILLIMETERS
THREAD PITCH IN MILLIMETERS 0.7
EXTERNAL THREAD TOLERANCE CLASS 4H
THREAD DIRECTION RIGHT-HAND
FASTENER LENGTH 0.600 INCHES NOMINAL
MATERIAL STEEL COMP 301 SECONDARY WASHER STEEL COMP 301 PRIMARY WASHER STEEL COMP 302 SPRING ALUMINUM ALLOY 6061 STAND-OFF STEEL CORROSION RESISTING FASTENER
SURFACE TREATMENT PASSIVATE SECONDARY WASHER PASSIVATE PRIMARY WASHER PASSIVATE SPRING ANODIZE STAND-OFF PASSIVATE FASTENER
HEAD STYLE C66 KNURLED NO. 1
HEAD DIAMETER 0.420 INCHES NOMINAL
HEAD HEIGHT 0.290 INCHES NOMINAL
INTERNAL DRIVE STYLE D14 SLOT
MATERIAL ACCOMMODATED THICKNESS 0.087 INCHES MINIMUM AND 0.158 INCHES MAXIMUM

Restrictions/Controls & Freight Information | NSN 5305-01-256-5802

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