Product Details | THUMBSCREW

5305-00-721-5660 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: 9172537, 5305-00-721-5660, 00-721-5660, 5305007215660, 007215660

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 27 MAR 1968 00-721-5660

Drawings & Photos | NSN 5305-00-721-5660


Cross Reference | NSN 5305-00-721-5660

Part Number Cage Code Manufacturer
9172537 18876 U S ARMY AVIATION AND MISSILE COMMAND

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Technical Data | NSN 5305-00-721-5660

Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER 0.190 INCHES
THREAD QUANTITY PER INCH 32
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 1.281 INCHES MINIMUM
FASTENER LENGTH 3.812 INCHES NOMINAL
MATERIAL STEEL COMP 303 OVERALL
SURFACE TREATMENT PASSIVATE OVERALL
HEAD STYLE C69 KNURLED NO. 4
HEAD DIAMETER 1.500 INCHES NOMINAL
HEAD HEIGHT 0.688 INCHES NOMINAL
POINT LENGTH 1.875 INCHES NOMINAL
POINT DIAMETER 0.125 INCHES NOMINAL
MANUFACTURERS CODE 18876
DESIGN CONTROL REFERENCE 9172537

Restrictions/Controls & Freight Information | NSN 5305-00-721-5660

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