Product Details | CLOSE TOLERANCE SCREW

5305-01-451-9021 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: BACB30LH29, BACB30LH2-9, 5305-01-451-9021, 01-451-9021, 5305014519021, 014519021

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 08 JAN 1998 01-451-9021

Drawings & Photos | NSN 5305-01-451-9021


Demand History | NSN 5305-01-451-9021

Part Number Request Date QTY Origin
5305-01-451-9021 2016-04-118 65 DIBBS
5305-01-451-9021 2014-11-314 57 DIBBS
5305-01-451-9021 2014-10-303 57 DIBBS

Cross Reference | NSN 5305-01-451-9021

Part Number Cage Code Manufacturer
BACB30LH2-9 06710 VALLEY-TODECO, INC.
BACB30LH2-9 06725 SPS TECHNOLOGIES LLC DBA AIR INDUSTRIES
BACB30LH2-9 17943 FEDERAL MANUFACTURING CORPORATION
BACB30LH2-9 27624 SPS TECHNOLOGIES, LLC DBA PB FASTENERS
BACB30LH2-9 80539 SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP
BACB30LH2-9 81205 THE BOEING COMPANY DBA BOEING
BACB30LH2-9 9N513 VOI-SHAN/CHATSWORTH DIV OF VSI CORP
BACB30LH2-9 Z03F0 BOEING DEFENCE AUSTRALIA LTD
BACB30LH2-9 Z8T75 BOEING DEFENCE AUSTRALIA LTD

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Technical Data | NSN 5305-01-451-9021

Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER 0.164 INCHES
THREAD QUANTITY PER INCH 32
THREAD CLASS 3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.345 INCHES NOMINAL
FASTENER LENGTH 0.892 INCHES MINIMUM AND 0.922 INCHES MAXIMUM
MATERIAL IRON ALLOY 660 OVERALL
SURFACE TREATMENT CADMIUM OVERALL
HEAD STYLE C50 FLAT COUNTERSUNK
HEAD DIAMETER 0.255 INCHES MINIMUM AND 0.334 INCHES MAXIMUM
COUNTERSINK ANGLE 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE D1 CROSS RECESS TYPE 1
GRIP LENGTH 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM
GRIP DIAMETER 0.1625 INCHES MINIMUM AND 0.1635 INCHES MAXIMUM

Restrictions/Controls & Freight Information | NSN 5305-01-451-9021

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 573 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 5305-01-451-9021

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 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