Product Details | SOCKET HEAD CAP SCREW

5305-00-639-3351 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: 333S678, 5305-00-639-3351, 00-639-3351, 5305006393351, 006393351

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-639-3351

Drawings & Photos | NSN 5305-00-639-3351


Demand History | NSN 5305-00-639-3351

Part Number Request Date QTY Origin
333S678 2025-08-217 2 DIBBS
333S678 2023-07-187 7 DIBBS
333S678 2023-05-143 2 DIBBS
333S678 2023-03-73 3 DIBBS
5305-00-639-3351 2017-03-67 31 DIBBS
333S678 2015-01-20 31 United States
5305-00-639-3351 2014-06-153 31 DIBBS
5305-00-639-3351 2014-05-140 31 DIBBS

Cross Reference | NSN 5305-00-639-3351

Part Number Cage Code Manufacturer
333S678 06848 HONEYWELL INTERNATIONAL INC. DBA HONEYWELL
333S678 55284 HONEYWELL INTERNATIONAL INC DBA HONEYWELL

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Technical Data | NSN 5305-00-639-3351

Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER 0.250 INCHES
THREAD QUANTITY PER INCH 20
THREAD CLASS 3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.625 INCHES NOMINAL
FASTENER LENGTH 0.625 INCHES NOMINAL
MATERIAL STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION AMS 5610,COMP 51416F ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT PASSIVATE OVERALL
HARDNESS RATING 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLE C49 FLAT CHAMFER
HEAD DIAMETER 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
HEAD HEIGHT 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
INTERNAL DRIVE STYLE D5 HEXAGON
WIDTH ACROSS FLATS 0.187 INCHES MINIMUM AND 0.189 INCHES MAXIMUM
HOLE CONFIGURATION STYLE E9 ROUND
HOLE TYPE DRILLED
HOLE QUANTITY 4
HOLE DIAMETER 0.062 INCHES NOMINAL
MANUFACTURERS CODE 06848
DESIGN CONTROL REFERENCE 333S678

Restrictions/Controls & Freight Information | NSN 5305-00-639-3351

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 096630 SCREWS NOI BRASS/BRONZE/COPPER
Less than car load rating U 50
Less than truck load rating Q 70.0
Water commodity Code 713 unknown
Originating Activity Code XX
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 5305-00-639-3351

Category Code Description
Budget Code9 General Support DIV57X4921.070:Air Force decentrally managed expense items (ERRC XB3, XF-3) with a unit cost of less than $250,000 that are requisitioned/procured at base (retail) level from DLA, GSA, Army, Navy, Depot Maintenance Service, Air Force Industrial Fund (AFMC), local manufacture and commercial vendors.
Price ValidationE The current standard price is an estimated price.
  • Estimated Price challenges are allowed, but follow procedures in para 60.b. (3) of section L of this manual.
  • This code will be changed to a P code upon notification of a contract price or this code will be changed to an updated code upon determination of a valid price.
Materiel Management Aggregation CodeOJSX:"ALLISON JET ENGINES & COMPONENTS, T-56"
Fund CodeSFStock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock Fund (except Munitions)
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