Product Details | CLOSE TOLERANCE SCREW

5305-01-202-8979 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: BACB30LK37, BACB30LK3-7, 5305-01-202-8979, 01-202-8979, 5305012028979, 012028979

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 07 MAR 1985 01-202-8979

Drawings & Photos | NSN 5305-01-202-8979


Demand History | NSN 5305-01-202-8979

Part Number Request Date QTY Origin
5305-01-202-8979 2012-04-100 60 DIBBS
BACB30LK37 2010-04-91 4 United States

Cross Reference | NSN 5305-01-202-8979

Part Number Cage Code Manufacturer
BACB30LK3-7 06710 VALLEY-TODECO, INC.
BACB30LK3-7 06725 SPS TECHNOLOGIES LLC DBA AIR INDUSTRIES
BACB30LK3-7 06950 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
BACB30LK3-7 17446 HUCK INTERNATIONAL, INC. DBA ALCOA FASTENING SYSTEMS
BACB30LK3-7 17943 FEDERAL MANUFACTURING CORPORATION
BACB30LK3-7 1RC86 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
BACB30LK3-7 27624 SPS TECHNOLOGIES, LLC DBA PB FASTENERS
BACB30LK3-7 56878 SPS TECHNOLOGIES, LLC DBA AEROSPACE DIVISION
BACB30LK3-7 80539 SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP
BACB30LK3-7 81205 THE BOEING COMPANY DBA BOEING
BACB30LK3-7 92215 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
BACB30LK3-7 97928 HUCK INTL INC
BACB30LK3-7 Z03F0 BOEING DEFENCE AUSTRALIA LTD
BACB30LK3-7 Z8T75 BOEING DEFENCE AUSTRALIA LTD

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Technical Data | NSN 5305-01-202-8979

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 0.320 INCHES MINIMUM AND 0.370 INCHES MAXIMUM
FASTENER LENGTH 0.768 INCHES MINIMUM AND 0.798 INCHES MAXIMUM
MATERIAL IRON ALLOY 660 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT CADMIUM AND CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAD STYLE C32 PAN
HEAD DIAMETER 0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM
HEAD HEIGHT 0.122 INCHES MINIMUM AND 0.133 INCHES MAXIMUM
INTERNAL DRIVE STYLE D1 CROSS RECESS TYPE 1
GRIP LENGTH 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM
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 5305-01-202-8979

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 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 KH Defense Industrial Supply Center
Philadelphia, PA 19111
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 5305-01-202-8979

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 CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each