Product Details | CLOSE TOLERANCE SCREW

5305-01-056-3205 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: BACB0LU57, BACB0LU5-7, BACB30LU57, BACB30LU5-7, 5305-01-056-3205, 01-056-3205, 5305010563205, 010563205

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 20 FEB 1978 01-056-3205

Drawings & Photos | NSN 5305-01-056-3205


Demand History | NSN 5305-01-056-3205

Part Number Request Date QTY Origin
5305-01-056-3205 2021-09-265 955 US

Cross Reference | NSN 5305-01-056-3205

Part Number Cage Code Manufacturer
BACB0LU5-7 97928 HUCK INTL INC
BACB30LU5-7 06710 VALLEY-TODECO, INC.
BACB30LU5-7 06725 SPS TECHNOLOGIES LLC DBA AIR INDUSTRIES
BACB30LU5-7 06950 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
BACB30LU5-7 17446 HUCK INTERNATIONAL, INC. DBA ALCOA FASTENING SYSTEMS
BACB30LU5-7 17943 FEDERAL MANUFACTURING CORPORATION
BACB30LU5-7 27624 SPS TECHNOLOGIES, LLC DBA PB FASTENERS
BACB30LU5-7 56878 SPS TECHNOLOGIES, LLC DBA AEROSPACE DIVISION
BACB30LU5-7 57928 SONIC INDUSTRIES INC.
BACB30LU5-7 80539 SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP
BACB30LU5-7 81205 THE BOEING COMPANY DBA BOEING
BACB30LU5-7 92215 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
BACB30LU5-7 97928 HUCK INTL INC

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Technical Data | NSN 5305-01-056-3205

Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER 0.312 INCHES
THREAD QUANTITY PER INCH 24
THREAD CLASS 3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.444 INCHES MINIMUM AND 0.494 INCHES MAXIMUM
FASTENER LENGTH 0.892 INCHES MINIMUM AND 0.922 INCHES MAXIMUM
MATERIAL STEEL COMP E4340 OR STEEL COMP 4340 OR STEEL COMP 8740 OVERALL
SURFACE TREATMENT CADMIUM AND CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAD STYLE C50 FLAT COUNTERSUNK
HEAD DIAMETER 0.574 INCHES MINIMUM AND 0.637 INCHES MAXIMUM
COUNTERSINK ANGLE 100.0 DEGREES NOMINAL
INTERNAL DRIVE STYLE D1 CROSS RECESS TYPE 1
GRIP LENGTH 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM
GRIP DIAMETER 0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM
SURFACE FINISH 32.0 MICROINCHES GRIP 32.0 MICROINCHES THREADS

Restrictions/Controls & Freight Information | NSN 5305-01-056-3205

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: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
NMF Description 093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3)
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 713 unknown
Originating Activity Code KZ Defense Supply Center Philadelphia
Philadelphia, PA 19101
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