Product Details | CLOSE TOLERANCE SCREW

5305-01-597-5155 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: BACB30FB42, BACB30FB4-2, 5305-01-597-5155, 01-597-5155, 5305015975155, 015975155

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 10 JUN 2011 01-597-5155

Demand History | NSN 5305-01-597-5155

Part Number Request Date QTY Origin
BACB30FB4-2 2021-05-125 300 DIBBS
BACB30FB4-2 2021-04-95 500 DIBBS
BACB30FB4-2 2021-03-84 500 DIBBS
BACB30FB4-2 2021-02-48 349 DIBBS
BACB30FB4-2 2021-02-46 242 DIBBS
BACB30FB4-2 2020-11-309 115 DIBBS
BACB30FB4-2 2020-07-211 28 DIBBS
BACB30FB4-2 2019-11-318 52 DIBBS
BACB30FB4-2 2019-10-296 51 DIBBS
BACB30FB4-2 2019-07-212 52 DIBBS
5305-01-597-5155 2018-08-241 65 DIBBS
5305-01-597-5155 2017-10-288 44 DIBBS
5305-01-597-5155 2014-03-77 218 DIBBS
5305-01-597-5155 2013-02-45 66 DIBBS
5305-01-597-5155 2012-11-307 210 DIBBS
5305-01-597-5155 2012-08-229 16 DIBBS
5305-01-597-5155 2011-12-349 32 DIBBS
5305-01-597-5155 2011-08-227 32 DIBBS
BACB30FB42 2010-09-273 1 US

Cross Reference | NSN 5305-01-597-5155

Part Number Cage Code Manufacturer
BACB30FB4-2 1RC86 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
BACB30FB4-2 56878 SPS TECHNOLOGIES, LLC DBA AEROSPACE DIVISION
BACB30FB4-2 73197 HI-SHEAR CORPORATION
BACB30FB4-2 81205 THE BOEING COMPANY DBA BOEING

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Technical Data | NSN 5305-01-597-5155

Characteristic Specifications
THREAD DIRECTION RIGHT-HAND
MATERIAL DOCUMENT AND CLASSIFICATION MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL OR AMS 6415 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS 6484 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS 6322 ASSN STD 1ST MATERIAL RESPONSE OVERALL OR MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OVERALL
HEAD HEIGHT 0.015 INCHES MAXIMUM
SURFACE TREATMENT CADMIUM OVERALL
GRIP LENGTH 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH 2550 POUNDS PER SQUARE INCH
INTERNAL DRIVE STYLE RECESSED TYPE I
THREAD QUANTITY PER INCH 28
COUNTERSINK ANGLE 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
THREAD LENGTH 0.425 INCHES NOMINAL
THREAD SERIES DESIGNATOR UNJF
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416, TYPE II CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
GRIP DIAMETER 0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
MATERIAL STEEL COMP E4340 OVERALL OR STEEL COMP 4340 OVERALL OR STEEL COMP 8740 OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCY BOLT, 100 DEGREE REDUCED HEAD, DOVETAIL RECESS, LONG THREAD, CLOSE TOLERANCE, ALLOY STEEL
NOMINAL THREAD DIAMETER 0.250 INCHES
FASTENER LENGTH 0.535 INCHES MINIMUM AND 0.565 INCHES MAXIMUM
HEAD DIAMETER 0.350 INCHES MINIMUM AND 0.399 INCHES MAXIMUM
HEAD STYLE FILLISTER COUNTERSUNK
THREAD CLASS 3A

Restrictions/Controls & Freight Information | NSN 5305-01-597-5155

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
Electro-static Discharge Susceptible:ANo known Electrostatic Discharge (ESD) or Electromagnetic Interference (EMI) sensitivity
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 096640 SCREWS, IRON OR STEEL
Less than car load rating
Less than truck load rating Q 70.0
Water commodity Code 713 unknown
Originating Activity Code SX Oklahoma City Air Logistics Center
Tinker AFB, OK 73145-3043
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 5305-01-597-5155

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.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock Fund (except Munitions)
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