Product Details | THUMBSCREW

5305-00-322-4451 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: 31122, 311-22, 5305-00-322-4451, 00-322-4451, 5305003224451, 003224451

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-322-4451

Drawings & Photos | NSN 5305-00-322-4451


Cross Reference | NSN 5305-00-322-4451

Part Number Cage Code Manufacturer
311-22 21900 FEDERAL DIV OF VICTOREEN INSTRUMENT CO INC

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Technical Data | NSN 5305-00-322-4451

Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER 0.500 INCHES
THREAD QUANTITY PER INCH 20
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.525 INCHES MINIMUM
FASTENER LENGTH 0.525 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT ZINC OVERALL
HEAD STYLE C66 KNURLED NO. 1
HEAD DIAMETER 1.000 INCHES NOMINAL
HEAD HEIGHT 0.287 INCHES NOMINAL
POINT STYLE F19 FLAT
MANUFACTURERS CODE 21900
DESIGN CONTROL REFERENCE 311-22

Restrictions/Controls & Freight Information | NSN 5305-00-322-4451

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