Product Details | SOCKET HEAD CAP SCREW

5305-01-521-6770 An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.

Part Alternates: AES43M407025CH1A81, B18.3.1 , B1831, B1831BH040025N, 5305-01-521-6770, 01-521-6770, 5305015216770, 015216770

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 29 JUN 2004 01-521-6770

Drawings & Photos | NSN 5305-01-521-6770


Demand History | NSN 5305-01-521-6770

Part Number Request Date QTY Origin
5305-01-521-6770 2022-02-46 20 United States
B1831 2018-04-113 4 United States

Cross Reference | NSN 5305-01-521-6770

Part Number Cage Code Manufacturer
AES43M407025CH1A81 05047 AMERICAN SOCIETY OF MECHANICAL ENGINEERS
B18.3.1 05047 AMERICAN SOCIETY OF MECHANICAL ENGINEERS
B1831BH040025N 80204 AMERICAN NATIONAL STANDARDS INSTITUTE, INCORPORATED

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Technical Data | NSN 5305-01-521-6770

Characteristic Specifications
THREAD SERIES DESIGNATOR M
NOMINAL THREAD DIAMETER 4.0 MILLIMETERS
THREAD PITCH IN MILLIMETERS 0.7
EXTERNAL THREAD TOLERANCE CLASS 6G
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 23.5 MILLIMETERS NOMINAL
FASTENER LENGTH 25.0 MILLIMETERS NOMINAL
MATERIAL STEEL PROPERTY CLASS 12.9 OVERALL
SURFACE TREATMENT ZINC OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION ASTMB633FE/ZN5,TYII ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HEAD STYLE C49 FLAT CHAMFER
HEAD DIAMETER 6.80 MILLIMETERS MINIMUM AND 7.00 MILLIMETERS MAXIMUM
HEAD HEIGHT 3.88 MILLIMETERS MINIMUM AND 4.00 MILLIMETERS MAXIMUM
INTERNAL DRIVE STYLE D5 HEXAGON
WIDTH ACROSS FLATS 4.020 MILLIMETERS MINIMUM AND 4.084 MILLIMETERS MAXIMUM
III END ITEM IDENTIFICATION STRYKER,FOV

Restrictions/Controls & Freight Information | NSN 5305-01-521-6770

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 AZ U.S. Army Tank-Automotive and Armaments
Command
Warren, MI 48397-5000
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity V Vehicles, machinery, shop and warehouse equipment and supplies, including special tools and equipment, ground servicing and special purpose vehicles, marine equipment and supplies, repair and maintenance parts for the above.
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 5305-01-521-6770

Category Code Description
Materiel Category and Inventory ManagerK Tactical and Support Vehicles, Combat and Automotive Materiel
Appropriation and Budget Activity2 Stock Fund Secondary Items
Management Inventory Segment2 NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable.
Specific Group/Generic CodeM Armored Carriers
Weapons Systems/End Item or Homogeneous GroupM8Light Armored Vehicle
Accounting Requirements CodeX Expendable item. An item of Army property coded with an ARC of ?X? in the AMDF. Expendable items require no formal accountability after issue from a stock record account. Commercial and fabricated items similar to items coded ?X? in the AMDF are considered expendable items.
Source of SupplyAKZUS Army Tank-Automotive and Armaments Command
Warren, MI 48397-5000
AgencyDADepartment of the Army
Service OrganizationAU.S. Army
ReparabilityZThis is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item.
Acquisition Advice CodesVTERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each
Category Code Description
Stores Account Code1Marine Corps Stock Fund Account Item.
Combat Essentiality Code5Critical Repair Part to a Combat Essential End Item. Those parts or components whose failure in a combat essential end item will render the end item inoperative or reduce its effectiveness below the minimum acceptable level of efficiency.
Materiel Management Code5General Property Materiel15; 16; 18; 31; 35; 39; 40; 44; 49 except 4910, 4925, 4930, 4931, 4933, 4935; 51; 52; 53; 63; 65 except 6545; 69; 70; 71; 72; 73; 74; 75; 76; 77; 78; 79; 80; 81 except 8140; 83; 84; 85; 87; 88; 89; 91; 93; 94; 95; 96; 99 10.3-125
Echelon Management Code6ICP/DSSCs Weapon system-oriented consumable items assigned to another Service/Agency for integrated materiel management which are managed by the ICP on a complex basis and which have not been decontrolled by the Integrated Materiel Manager.
Operational Test Code0Items of supply which when properly packaged and placed in storage, do not require the performance of special procedures while in storage, nor prior to issue, and for which it has been determined that existing Care in Stores quality control procedures are adequate.
Source of SupplyAKZUS Army Tank-Automotive and Armaments Command
Warren, MI 48397-5000
AgencyDMU.S. Marine Corps
Service OrganizationMU.S. Marine Corps
ReparabilityZNonreparable item. When unserviceable, condemn and dispose at the level indicated by the first digit of the maintenance code.
Acquisition Advice CodesVTERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each