Product Details | THUMBSCREW

5305-01-285-9486 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: SCC884728, SC-C-884728, 5305-01-285-9486, 01-285-9486, 5305012859486, 012859486

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 23 SEP 1988 01-285-9486

Drawings & Photos | NSN 5305-01-285-9486


Cross Reference | NSN 5305-01-285-9486

Part Number Cage Code Manufacturer
SC-C-884728 80063 US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS

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Technical Data | NSN 5305-01-285-9486

Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER 0.250 INCHES
THREAD QUANTITY PER INCH 20
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM
FASTENER LENGTH 2.045 INCHES MINIMUM AND 2.055 INCHES MAXIMUM
MATERIAL STEEL COMP 303 OVERALL
HEAD STYLE C80 THUMB NO. 4
HEAD HEIGHT 0.610 INCHES MINIMUM AND 0.630 INCHES MAXIMUM
WIDTH BETWEEN FLATS 1.110 INCHES MINIMUM AND 1.130 INCHES MAXIMUM
POINT STYLE F22 POINTLESS
SHOULDER SHAPE ROUND FIRST SHOULDER
SHOULDER DIAMETER 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM FIRST SHOULDER
SHOULDER LENGTH 0.110 INCHES MINIMUM AND 0.130 INCHES MAXIMUM FIRST SHOULDER

Restrictions/Controls & Freight Information | NSN 5305-01-285-9486

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