Product Details | CLOSE TOLERANCE SCREW

5305-01-590-6398 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: NAS1580C6T40D, 5305-01-590-6398, 01-590-6398, 5305015906398, 015906398

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 14 DEC 2010 01-590-6398

Cross Reference | NSN 5305-01-590-6398

Part Number Cage Code Manufacturer
NAS1580C6T40D 80205 NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES

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Technical Data | NSN 5305-01-590-6398

Characteristic Specifications
THREAD DIRECTION RIGHT-HAND
HEAD DIAMETER 0.760 INCHES NOMINAL
THREAD LENGTH 0.594 INCHES NOMINAL
HEAD STYLE FLAT COUNTERSUNK
INTERNAL DRIVE STYLE OFFSET CRUCIFORM (TORQUE SET)
MINIMUM TENSILE STRENGTH 160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER 0.375 INCHES
COUNTERSINK ANGLE 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
THREAD QUANTITY PER INCH 24
GRIP LENGTH 2.500 INCHES NOMINAL
THREAD SERIES DESIGNATOR UNJF
GRIP DIAMETER 0.373 INCHES MINIMUM AND 0.374 INCHES MAXIMUM
SPECIAL FEATURES ITEM HAS DRILLED THREADS
SURFACE TREATMENT PASSIVATE OVERALL
MATERIAL IRON ALLOY 660 OVERALL
FASTENER LENGTH 3.094 INCHES NOMINAL
THREAD CLASS 3A

Restrictions/Controls & Freight Information | NSN 5305-01-590-6398

Category Code Description
Shelf-Life Code:0Nondeteriorative
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.
Controlled Inventory Item Code:UUNCLASSIFIED
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
NMF Description 096640 SCREWS, IRON OR STEEL
Less than car load rating
Less than truck load rating Q 70.0
Water commodity Code 713 unknown
Originating Activity Code HD Naval Inventory Control Point
Mechanicsburg, PA 17055-0788
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 5305-01-590-6398

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative