Product Details | THUMBSCREW

5305-00-863-9811 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: CE215643, 5305-00-863-9811, 00-863-9811, 5305008639811, 008639811

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 04 MAY 1970 00-863-9811

Drawings & Photos | NSN 5305-00-863-9811


Cross Reference | NSN 5305-00-863-9811

Part Number Cage Code Manufacturer
CE215643 98230 NATIONAL SECURITY AGENCY

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Technical Data | NSN 5305-00-863-9811

Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER 0.250 INCHES
THREAD QUANTITY PER INCH 28
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.345 INCHES MINIMUM AND 0.405 INCHES MAXIMUM
FASTENER LENGTH 1.210 INCHES MINIMUM AND 1.250 INCHES MAXIMUM
MATERIAL STEEL COMP 303 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT PASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAD STYLE C66 KNURLED NO. 1
HEAD DIAMETER 0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM
HEAD HEIGHT 0.230 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
POINT STYLE F16 CONE
FIRST DIAMETER FROM HEAD 0.242 INCHES MINIMUM AND 0.258 INCHES MAXIMUM
SECOND DIAMETER FROM HEAD 0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER 0.520 INCHES MINIMUM AND 0.540 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER 0.720 INCHES MINIMUM AND 0.740 INCHES MAXIMUM

Restrictions/Controls & Freight Information | NSN 5305-00-863-9811

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