Product Details | DOUBLE HEXAGON EXTENDED WASHER SELF-LOCKING NUT

5310-01-203-1683 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: NAS18057N, NAS1805-7N, 5310-01-203-1683, 01-203-1683, 5310012031683, 012031683

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 12 MAR 1985 01-203-1683

Drawings & Photos | NSN 5310-01-203-1683


Demand History | NSN 5310-01-203-1683

Part Number Request Date QTY Origin
5310-01-203-1683 2012-04-110 55 DIBBS
NAS18057N 2011-10-279 10 Brazil
5310-01-203-1683 2008-08-234 55 DIBBS

Cross Reference | NSN 5310-01-203-1683

Part Number Cage Code Manufacturer
NAS1805-7N 80205 NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES

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Technical Data | NSN 5310-01-203-1683

Characteristic Specifications
THREAD SERIES UNJF
NOMINAL THREAD SIZE 0.438 INCHES
THREAD QUANTITY PER INCH 20
THREAD CLASS 3B
THREAD DIRECTION RIGHT-HAND
MATERIAL IRON ALLOY 660 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT CADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TY II,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING NOT RATED
NUT STYLE A293 DOUBLE HEXAGON
WASHER OUTSIDE DIAMETER 0.729 INCHES MAXIMUM
OVERALL HEIGHT 0.438 INCHES MAXIMUM
WASHER THICKNESS 0.069 INCHES NOMINAL
WIDTH ACROSS FLATS 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM
LOCKING FEATURE PREVAILING TORQUE ALL METAL DESIGN
LUBRICATION DRY FILM LUBRICANT
TEMP RATING 450.0 DEG FAHRENHEIT MAXIMUM
SPECIFICATION/STANDARD DATA 80205-NAS1805 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD

Restrictions/Controls & Freight Information | NSN 5310-01-203-1683

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.
Category Code Description
NMF Description 194160 WASHER OR GASKETS, IRON OR STEEL,
Less than car load rating U 50
Less than truck load rating U 50.0
Water commodity Code 573 unknown
Originating Activity Code 9Z DLIS-K
Battle Creek, MI 49037-3084
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity
Air Special Handling Z No special handling required.
Special Handling Code Z unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 5310-01-203-1683

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