Product Details | CLOSE TOLERANCE SCREW

5305-01-373-3845 A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a specific diameter for items (1.000 IN.) (25 mm) or less in diameter. Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 IN.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

Part Alternates: NAS11433, NAS1143-3, 5305-01-373-3845, 01-373-3845, 5305013733845, 013733845

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 02 APR 1993 01-373-3845

Drawings & Photos | NSN 5305-01-373-3845


Demand History | NSN 5305-01-373-3845

Part Number Request Date QTY Origin
NAS11433 2023-03-72 100 US
NAS11433 2021-09-264 50 Korea
5305-01-373-3845 2016-05-137 1000 us
5305-01-373-3845 2010-07-206 80 UK

Cross Reference | NSN 5305-01-373-3845

Part Number Cage Code Manufacturer
NAS1143-3 80205 NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES

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Technical Data | NSN 5305-01-373-3845

Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER 0.190 INCHES
THREAD QUANTITY PER INCH 32
THREAD CLASS 3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.276 INCHES MINIMUM
FASTENER LENGTH 0.449 INCHES MINIMUM AND 0.479 INCHES MAXIMUM
MATERIAL STEEL OVERALL
HEAD STYLE C32 PAN
HEAD DIAMETER 0.361 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
HEAD HEIGHT 0.103 INCHES MINIMUM AND 0.118 INCHES MAXIMUM
INTERNAL DRIVE STYLE D8 TORQUE SET
GRIP LENGTH 0.188 INCHES NOMINAL
GRIP DIAMETER 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM
SURFACE FINISH 32.0 MICROINCHES BEARING SURFACE OF HEAD 32.0 MICROINCHES GRIP 32.0 MICROINCHES THREADS

Restrictions/Controls & Freight Information | NSN 5305-01-373-3845

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