Product Details | CLOSE TOLERANCE SCREW

5305-01-243-0157 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: AS3032415, AS303-24-15, LE11100442415, LE111-0044-2415, 1232564R2415, 123256-4R-2415, 5305-01-243-0157, 01-243-0157, 5305012430157, 012430157

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 21 OCT 1986 01-243-0157

Drawings & Photos | NSN 5305-01-243-0157


Demand History | NSN 5305-01-243-0157

Part Number Request Date QTY Origin
123256-4R-2415 2022-12-02 38 DIBBS
AS303-24-15 2022-12-02 38 DIBBS
123256-4R-2415 2022-11-24 38 DIBBS
AS303-24-15 2022-11-24 38 DIBBS
123256-4R-2415 2021-10-05 95 DIBBS
AS303-24-15 2021-10-05 95 DIBBS
123256-4R-2415 2020-11-23 95 DIBBS
AS303-24-15 2020-11-23 95 DIBBS
123256-4R-2415 2020-11-11 95 DIBBS
AS303-24-15 2020-11-11 95 DIBBS
123256-4R-2415 2019-09-08 99 DIBBS
AS303-24-15 2019-09-08 99 DIBBS
5305-01-243-0157 2018-04-01 78 DIBBS
5305-01-243-0157 2017-05-04 88 DIBBS
5305-01-243-0157 2016-06-29 86 DIBBS
5305-01-243-0157 2016-04-26 36 DIBBS
5305-01-243-0157 2012-07-27 81 DIBBS
5305-01-243-0157 2012-07-25 58 DIBBS
5305-01-243-0157 2012-04-10 61 DIBBS
5305-01-243-0157 2012-03-14 23 DIBBS
5305-01-243-0157 2012-01-25 13 DIBBS
5305-01-243-0157 2011-12-07 27 DIBBS
5305-01-243-0157 2011-11-23 15 DIBBS
5305-01-243-0157 2011-08-26 6 DIBBS
5305-01-243-0157 2010-08-11 4 DIBBS
5305-01-243-0157 2010-03-01 6 DIBBS
5305-01-243-0157 2009-06-15 4 DIBBS

Cross Reference | NSN 5305-01-243-0157

Part Number Cage Code Manufacturer
123256-4R-2415 80539 SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP
AS303-24-15 84256 AVIBANK MFG., INC.
LE111-0044-2415 43999 BOEING COMPANY, THE DBA BOEING

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Technical Data | NSN 5305-01-243-0157

Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER 0.250 INCHES
THREAD QUANTITY PER INCH 28
THREAD CLASS 3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.331 INCHES MINIMUM AND 0.438 INCHES MAXIMUM
FASTENER LENGTH 1.356 INCHES MINIMUM AND 1.376 INCHES MAXIMUM
MATERIAL STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 4130 OR STEEL COMP 6150 OVERALL
SURFACE TREATMENT CADMIUM AND CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416 TY2,CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING 36.0 ROCKWELL C MINIMUM AND 41.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLE C50 FLAT COUNTERSUNK
HEAD DIAMETER 0.449 INCHES MINIMUM AND 0.507 INCHES MAXIMUM
COUNTERSINK ANGLE 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE D8 TORQUE SET
LOCKING FEATURE DETENT BALL THREADS
GRIP LENGTH 0.938 INCHES MINIMUM AND 0.954 INCHES MAXIMUM
GRIP DIAMETER 0.2483 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM
SURFACE FINISH 32.0 MICROINCHES GRIP 32.0 MICROINCHES THREADS
SPECIAL FEATURES INTERNAL DRIVE RIBBED

Restrictions/Controls & Freight Information | NSN 5305-01-243-0157

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.
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 5305-01-243-0157

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 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-ALC
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock 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 CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each