NSN 5305-00-031-1136 51B58137, 51B581-3-7, 00-031-1136

Product Details | CLOSE TOLERANCE SCREW


5305-00-031-1136 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: 51B58137, 51B581-3-7, 5305-00-031-1136, 00-031-1136, 5305000311136, 000311136

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 28 OCT 1972 00-031-1136

Drawings & Photos | NSN 5305-00-031-1136



Demand History | NSN 5305-00-031-1136


Part Number Request Date QTY Origin
51B581-3-7 2022-10-19 29 DIBBS
5305-00-031-1136 2020-09-21 106 Taiwan
5305-00-031-1136 2020-08-11 106 Taiwan
5305-00-031-1136 2020-06-29 120 Taiwan
5305-00-031-1136 2016-05-30 207 DIBBS
5305-00-031-1136 2016-03-30 28 DIBBS
5305-00-031-1136 2012-08-08 107 DIBBS
5305-00-031-1136 2012-01-04 86 DIBBS
5305-00-031-1136 2011-12-28 32 DIBBS
5305-00-031-1136 2011-12-21 100 DIBBS
5305-00-031-1136 2010-11-15 51 DIBBS
5305-00-031-1136 2010-08-17 61 DIBBS
5305-00-031-1136 2010-07-24 61 DIBBS
5305-00-031-1136 2010-03-25 61 DIBBS
5305-00-031-1136 2010-01-20 555 DIBBS
5305-00-031-1136 2009-12-04 272 DIBBS
5305-00-031-1136 2009-09-15 333 DIBBS

Cross Reference | NSN 5305-00-031-1136


Part Number Cage Code Manufacturer
51B581-3-7 06725 SPS TECHNOLOGIES LLC DBA AIR INDUSTRIES
51B581-3-7 06950 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
51B581-3-7 0JRC1 NORTHROP GRUMMAN TECHNICAL SERVICES, INC.
51B581-3-7 17446 HUCK INTERNATIONAL, INC. DBA ALCOA FASTENING SYSTEMS
51B581-3-7 1RC86 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
51B581-3-7 22915 NORTHROP GRUMMAN CORP ELECTRONIC SYSTEMS DEFENSIVE SYSTEM
51B581-3-7 27624 SPS TECHNOLOGIES, LLC DBA PB FASTENERS
51B581-3-7 73197 HI-SHEAR CORPORATION
51B581-3-7 76823 NORTHROP GRUMMAN SYSTEMS CORPORATION DIV NORTHROP GRUMMAN AEROSPACE
51B581-3-7 80539 SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP
51B581-3-7 L4528 LISI AEROSPACE CANADA CORP

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NSNs for Compare ( up to 4 ): Add 5305-00-031-1136


Technical Data | NSN 5305-00-031-1136


Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER 0.190 INCHES
THREAD QUANTITY PER INCH 32
THREAD CLASS 3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.250 INCHES MINIMUM AND 0.317 INCHES MAXIMUM
FASTENER LENGTH 0.698 INCHES MINIMUM AND 0.745 INCHES MAXIMUM
MATERIAL STEEL COMP 4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OVERALL
SURFACE TREATMENT CADMIUM AND CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TY 2,CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL
HARDNESS RATING 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH 180000 POUNDS PER SQUARE INCH
HEAD STYLE C50 FLAT COUNTERSUNK
HEAD DIAMETER 0.296 INCHES MINIMUM AND 0.301 INCHES MAXIMUM
COUNTERSINK ANGLE 100.0 DEGREES NOMINAL
INTERNAL DRIVE STYLE D8 TORQUE SET
GRIP LENGTH 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM
GRIP DIAMETER 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM
SURFACE FINISH 32.0 MICROINCHES GRIP
MANUFACTURERS CODE 76823
DESIGN CONTROL REFERENCE 51B581-3-7

Restrictions/Controls & Freight Information | NSN 5305-00-031-1136


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:UPrecious metal type is unknown
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 KZ Defense Supply Center Philadelphia
Philadelphia, PA 19101
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 5305-00-031-1136


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.
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
Price ValidationV The current standard price has been validated.
  • The item has been analyzed in conjunction with the Zero Overpricing Program and is in the accepted price range.
  • The item was procured under open competition and under the competitive arena the price is considered fair and reasonable.
  • ZOP or Standard price challenges are permissible but must be supported by adequate justification.
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
Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
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

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