Product Details | CLOSE TOLERANCE SCREW

5305-01-598-4340 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: VT1693F419, VT1693F4-19, 5305-01-598-4340, 01-598-4340, 5305015984340, 015984340

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 01 AUG 2011 01-598-4340

Cross Reference | NSN 5305-01-598-4340

Part Number Cage Code Manufacturer
VT1693F4-19 06950 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
VT1693F4-19 92215 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS

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Technical Data | NSN 5305-01-598-4340

Characteristic Specifications
THREAD DIRECTION RIGHT-HAND
SPECIAL FEATURES FINISH:CADMIUM FLUOROBORATE
POINT STYLE FLAT
THREAD LENGTH 0.370 INCHES NOMINAL
THREAD SERIES DESIGNATOR UNF
HEAD STYLE FLAT COUNTERSUNK
MATERIAL STEEL COMP H11 OVERALL
INTERNAL DRIVE STYLE OFFSET CRUCIFORM (TORQUE SET)
GRIP LENGTH 1.187 INCHES NOMINAL
SURFACE TREATMENT CADMIUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
COUNTERSINK ANGLE 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
HEAD DIAMETER 0.587 INCHES NOMINAL
THREAD QUANTITY PER INCH 26
FASTENER LENGTH 1.557 INCHES NOMINAL
NOMINAL THREAD DIAMETER 0.250 INCHES
GRIP DIAMETER 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
THREAD CLASS 3A

Restrictions/Controls & Freight Information | NSN 5305-01-598-4340

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.
Electro-static Discharge Susceptible:ANo known Electrostatic Discharge (ESD) or Electromagnetic Interference (EMI) sensitivity
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
No Freight Information