Product Details | DOUBLE HEXAGON EXTENDED WASHER SELF-LOCKING NUT

5310-00-237-7444 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: STSCD00806, STSCD008-06, 55LH96386, 55LH9638-6, 69678624, 69678-624, 5310-00-237-7444, 00-237-7444, 5310002377444, 002377444

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 28 OCT 1970 00-237-7444

Drawings & Photos | NSN 5310-00-237-7444


Demand History | NSN 5310-00-237-7444

Part Number Request Date QTY Origin
69678-624 2025-06-160 208 DIBBS
5310-00-237-7444 2025-05-133 127 DIBBS
69678-624 2024-11-319 81 DIBBS
69678-624 2024-10-291 5 DIBBS
69678-624 2024-10-283 5 DIBBS
69678-624 2024-08-239 4 DIBBS
69678-624 2024-08-226 4 DIBBS
69678-624 2024-08-214 21 DIBBS
69678-624 2024-06-171 21 DIBBS
69678-624 2023-05-129 3 DIBBS
69678-624 2022-05-139 5 DIBBS
69678-624 2022-04-117 4 DIBBS
69678-624 2022-01-09 12 DIBBS
69678-624 2021-11-308 10 DIBBS
69678-624 2021-07-195 10 DIBBS
69678624 2015-12-351 84 Malaysia
5310-00-237-7444 2015-12-342 84 Malaysia
5310-00-237-7444 2015-09-257 200 US
5310-00-237-7444 2015-08-221 82 DIBBS
69678624 2014-11-316 340 US
69678624 2014-11-316 340 US
5310-00-237-7444 2014-02-38 265 US
5310-00-237-7444 2010-05-134 128 DIBBS
5310-00-237-7444 2010-05-126 168 DIBBS
5310-00-237-7444 2009-12-344 168 DIBBS

Cross Reference | NSN 5310-00-237-7444

Part Number Cage Code Manufacturer
55LH9638-6 019L2 MACLEAN-FOGG COMPANY DBA MAC LEAN-ESNA
55LH9638-6 72962 HARVARD INDUSTRIES INC
69678-624 56878 SPS TECHNOLOGIES, LLC DBA AEROSPACE DIVISION
STSCD008-06 98897 LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN AERONAUTICS

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Technical Data | NSN 5310-00-237-7444

Characteristic Specifications
THREAD SERIES UNJF
NOMINAL THREAD SIZE 0.375 INCHES
THREAD QUANTITY PER INCH 24
THREAD CLASS 3B
THREAD DIRECTION RIGHT-HAND
MATERIAL STEEL COMP H11 OR STEEL COMP 8740 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION AMS 6485 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6487 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6322 ASSN STD 2ND MATERIAL RESPONSE OVERALL
SURFACE TREATMENT CADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING 47.0 ROCKWELL C NOMINAL
NUT STYLE A293 DOUBLE HEXAGON
WASHER OUTSIDE DIAMETER 0.585 INCHES MAXIMUM
OVERALL HEIGHT 0.416 INCHES MAXIMUM
WASHER THICKNESS 0.081 INCHES MINIMUM
WIDTH ACROSS FLATS 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM
LOCKING FEATURE PREVAILING TORQUE ALL METAL DESIGN
COUNTERSINK ANGLE ANY ACCEPTABLE NUT
LUBRICATION SOLUBLE LUBRICANT
TEMP RATING 450.0 DEG FAHRENHEIT NOMINAL
MANUFACTURERS CODE 56878
DESIGN CONTROL REFERENCE 69678-624

Restrictions/Controls & Freight Information | NSN 5310-00-237-7444

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 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 5310-00-237-7444

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
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