Additional Information:

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.

Cross Reference

CHT4057-6-8 17419DEUTSCH CO THEHT4057-6-78 80539SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUPHT4057-6-8 73197HI-SHEAR CORPORATIONHT4057-6-8 92215ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMSHT4057-6-8 97928HUCK INTL INCHT4057-6-8A 0PTK6SPS TECHNOLOGIES INCHT4057-6-8A 17446HUCK INTERNATIONAL, INC. DBA ALCOA FASTENING SYSTEMSHT4057-6-8A 73197HI-SHEAR CORPORATIONHT4057-6-8A 80539SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUPHT4057-6-8A 92215ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMSHT4057-6-8A 97928HUCK INTL INCHT4057-6-8A L4528LISI AEROSPACE CANADA CORPHT4057-6L8A 06950ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMSHT4057-6L8A 56878SPS TECHNOLOGIES, LLC DBA AEROSPACE DIVISIONHT4057-6L8A K5673SPS TECHNOLOGIES LTD TJ BROOKS DIVISIONST3M733-6L8 58998EMHART TEKNOLOGIES LLC DBA FASTENER INNOVATION TECHNOLOGYST3M733-6L8 76301BOEING COMPANY, THE DBA BOEINGWC4057-6-8 60516WEST COAST AEROSPACE INCWC5057-6-8 60516WEST COAST AEROSPACE INC

Restrictions/Controls & Freight Information

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)

Management

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 ValidationN The current standard price in Catalog Management Data (CMD) has not analyzed or coded for LP/LM.The price has not been analyzed or reviewed for accuracy.ZOP or Standard price challenges are permissible, but must be supported with adequate justification. However, if coded for Local Purchase (LP) or Fabrication/Manufacture as indicated with an (LM) Acquisition Advice Code of ?L? or?F?,the case must be evaluated locally where purchased or fabricated.Fund CodeSFStock fund applicable to items managed for the Air Force by the respective Inventory Control Point.Materiel Management Aggregation CodeSXSX:AF SICA RESIDUAL MMAC-OC-ALCSource of SupplySMSDefense Logistics AgencyEnterprise Business SystemsAgencyDFDepartment of the Air ForceService OrganizationFU.S. Air ForceReparabilityNStock Fund (except Munitions)Acquisition Advice CodesDDoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures. Controlled Item CodeUUNCLASSIFIEDShelf Life Code0NondeteriorativePurchasingQTY UOMM EA : Each

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