Product Details | CLOSE TOLERANCE SCREW

5305-01-338-9348 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: BACB30NN4S17, 5305-01-338-9348, 01-338-9348, 5305013389348, 013389348

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 12 MAY 1991 01-338-9348

Drawings & Photos | NSN 5305-01-338-9348


Cross Reference | NSN 5305-01-338-9348

Part Number Cage Code Manufacturer
BACB30NN4S17 06710 VALLEY-TODECO, INC.
BACB30NN4S17 06725 SPS TECHNOLOGIES LLC DBA AIR INDUSTRIES
BACB30NN4S17 06950 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
BACB30NN4S17 17446 HUCK INTERNATIONAL, INC. DBA ALCOA FASTENING SYSTEMS
BACB30NN4S17 27624 SPS TECHNOLOGIES, LLC DBA PB FASTENERS
BACB30NN4S17 56878 SPS TECHNOLOGIES, LLC DBA AEROSPACE DIVISION
BACB30NN4S17 73197 HI-SHEAR CORPORATION
BACB30NN4S17 80539 SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP
BACB30NN4S17 81205 THE BOEING COMPANY DBA BOEING
BACB30NN4S17 92215 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
BACB30NN4S17 93907 TEXTRON FASTENING SYSTEMS DBA DECORAH OPERATIONS TFS
BACB30NN4S17 97928 HUCK INTL INC
BACB30NN4S17 L4528 LISI AEROSPACE CANADA CORP

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Technical Data | NSN 5305-01-338-9348

Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER 0.250 INCHES
THREAD QUANTITY PER INCH 28
THREAD CLASS 3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.425 INCHES NOMINAL
FASTENER LENGTH 1.473 INCHES MINIMUM AND 1.503 INCHES MAXIMUM
MATERIAL TITANIUM ALLOY UNS R56400 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT PHOSPHATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION BAC 5861,CAGEC 81205 MFR REF SINGLE TREATMENT RESPONSE OVERALL
COLOR RED THREADS
MINIMUM TENSILE STRENGTH 160000 POUNDS PER SQUARE INCH
HEAD STYLE C50 FLAT COUNTERSUNK
HEAD DIAMETER 0.465 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
COUNTERSINK ANGLE 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE D1 CROSS RECESS TYPE 1
GRIP LENGTH 1.053 INCHES MINIMUM AND 1.073 INCHES MAXIMUM
GRIP DIAMETER 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
SURFACE FINISH 63.0 MICROINCHES BEARING SURFACE OF HEAD 32.0 MICROINCHES GRIP 32.0 MICROINCHES THREADS
SPECIAL FEATURES SURFACE TREATMENT CONTAINS FLUORIDE

Restrictions/Controls & Freight Information | NSN 5305-01-338-9348

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
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
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 GX HQ Defense Logistics Agency, Enterprise Business
Systems
Fort Belvoir, VA 22060
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 5305-01-338-9348

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