Product Details | DOUBLE HEXAGON EXTENDED WASHER SELF-LOCKING NUT

5310-00-488-9137 A nut having 12 drive points, 24 sides, and an integral washer which extends beyond the points or periphery. An integral feature is incorporated for locking on the threads of a mating member.

Part Alternates: EB048, EB428, EB-428, 11745808, 12NH4, 12NH-4, 7792554, 9026171, 5310-00-488-9137, 00-488-9137, 5310004889137, 004889137

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-488-9137

Drawings & Photos | NSN 5310-00-488-9137


Demand History | NSN 5310-00-488-9137

Part Number Request Date QTY Origin
EB048 2017-09-246 2000 IR
EB048 2017-07-209 5000 China
5310-00-488-9137 2017-03-60 6920 DIBBS
5310-00-488-9137 2016-12-336 8650 DIBBS
EB048 2016-11-326 4 United States
5310-00-488-9137 2013-09-268 5588 DIBBS
EB048 2013-07-190 4 CL
5310-00-488-9137 2011-10-278 8 ZA
5310-00-488-9137 2009-05-125 8745 DIBBS
5310-00-488-9137 2008-11-316 1725 DIBBS
5310-00-488-9137 2008-08-221 786 DIBBS
5310-00-488-9137 2008-06-155 3221 DIBBS
EB048 2008-02-45 86 BE

Cross Reference | NSN 5310-00-488-9137

Part Number Cage Code Manufacturer
11745808 19200 US ARMY ARDEC RDECOM
12NH-4 019L2 MACLEAN-FOGG COMPANY DBA MAC LEAN-ESNA
7792554 19205 SPRINGFIELD ARMORY
9026171 18876 U S ARMY AVIATION AND MISSILE COMMAND
EB-428 15653 ALCOA GLOBAL FASTENERS, INC.
EB048 000Y2 MILLS/STERLING AEROSPACE INC
EB048 12770 ARNOLD ENGINEERING CO PACIFIC DIV DIV OF SPS TECHNOLOGIES
EB048 56878 SPS TECHNOLOGIES, LLC DBA AEROSPACE DIVISION
EB048 72962 HARVARD INDUSTRIES INC
EB048 97499 BELL HELICOPTER TEXTRON INC.

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Technical Data | NSN 5310-00-488-9137

Characteristic Specifications
THREAD SERIES UNJF
NOMINAL THREAD SIZE 0.250 INCHES
THREAD QUANTITY PER INCH 28
THREAD CLASS 3B
THREAD DIRECTION RIGHT-HAND
MATERIAL STEEL COMP 4130 OR STEEL COMP 4340 OR STEEL COMP 3140 OR STEEL COMP 8740 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION AISI4130 ASSN STD SINGLE MATERIAL RESPONSE OR AISI4340 ASSN STD SINGLE MATERIAL RESPONSE OR AISI3140 ASSN STD SINGLE MATERIAL RESPONSE OR SAE8740 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT CADMIUM AND CHROMATE OVERALL EXCEPT INSERT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING NOT RATED
NUT STYLE A293 DOUBLE HEXAGON
WASHER OUTSIDE DIAMETER 0.521 INCHES MINIMUM AND 0.531 INCHES MAXIMUM
OVERALL HEIGHT 0.334 INCHES NOMINAL
WASHER THICKNESS 0.090 INCHES NOMINAL
WIDTH ACROSS FLATS 0.362 INCHES MINIMUM AND 0.377 INCHES MAXIMUM
LOCKING FEATURE PREVAILING TORQUE WITH NONMETALLIC INSERT
COUNTERSINK ANGLE ANY ACCEPTABLE NUT
TEMP RATING 250.0 DEG FAHRENHEIT NOMINAL

Restrictions/Controls & Freight Information | NSN 5310-00-488-9137

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 573 unknown
Originating Activity Code XX
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 5310-00-488-9137

Category Code Description
Materiel Category and Inventory ManagerT Industrial Supplies (DLA/GSA Items)
Appropriation and Budget Activity2 Stock Fund Secondary Items
Management Inventory Segment2 NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable.
Specific Group/Generic Code0 Medical Materiel
Weapons Systems/End Item or Homogeneous Group00DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item
Accounting Requirements CodeX Expendable item. An item of Army property coded with an ARC of ?X? in the AMDF. Expendable items require no formal accountability after issue from a stock record account. Commercial and fabricated items similar to items coded ?X? in the AMDF are considered expendable items.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDADepartment of the Army
Service OrganizationAU.S. Army
ReparabilityZThis is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item.
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
H
EA : Each
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 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
H
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 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
H
EA : Each