Product Details | DOUBLE HEXAGON EXTENDED WASHER SELF-LOCKING NUT

5310-00-178-0166 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: H198174, H19817-4, LH6124048, LH6124-048, R1181P004, R1181P004B, R1181P004C, R1181P004D, 58047428, 58047-428, 5310-00-178-0166, 00-178-0166, 5310001780166, 001780166

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 24 FEB 1973 00-178-0166

Drawings & Photos | NSN 5310-00-178-0166


Demand History | NSN 5310-00-178-0166

Part Number Request Date QTY Origin
5310-00-178-0166 2024-10-286 56 China
R1181P004 2024-10-284 60 China
R1181P004 2021-08-242 48 United States
R1181P004 2017-03-79 3 CA
5310-00-178-0166 2013-08-225 1 DIBBS-RFPs
5310-00-178-0166 2013-07-207 1 DIBBS-RFPs
5310-00-178-0166 2008-11-308 951 DIBBS
5310-00-178-0166 2008-11-308 3005 DIBBS

Cross Reference | NSN 5310-00-178-0166

Part Number Cage Code Manufacturer
58047-428 56878 SPS TECHNOLOGIES, LLC DBA AEROSPACE DIVISION
H19817-4 15653 ALCOA GLOBAL FASTENERS, INC.
H19817-4 75237 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
LH6124-048 019L2 MACLEAN-FOGG COMPANY DBA MAC LEAN-ESNA
LH6124-048 72962 HARVARD INDUSTRIES INC
R1181P004 99207 GENERAL ELECTRIC COMPANY DBA GE
R1181P004B 99207 GENERAL ELECTRIC COMPANY DBA GE
R1181P004C 99207 GENERAL ELECTRIC COMPANY DBA GE
R1181P004D 99207 GENERAL ELECTRIC COMPANY DBA GE

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Technical Data | NSN 5310-00-178-0166

Characteristic Specifications
THREAD SERIES UNJF
NOMINAL THREAD SIZE 0.250 INCHES
THREAD QUANTITY PER INCH 28
THREAD CLASS 3B
THREAD DIRECTION RIGHT-HAND
MATERIAL IRON ALLOY 660 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT SILVER OVERALL
HARDNESS RATING NOT RATED
NUT STYLE A293 DOUBLE HEXAGON
WASHER OUTSIDE DIAMETER 0.399 INCHES MINIMUM AND 0.440 INCHES MAXIMUM
OVERALL HEIGHT 0.282 INCHES MINIMUM AND 0.328 INCHES MAXIMUM
WASHER THICKNESS 0.045 INCHES NOMINAL
WIDTH ACROSS FLATS 0.304 INCHES MINIMUM AND 0.313 INCHES MAXIMUM
LOCKING FEATURE PREVAILING TORQUE ALL METAL DESIGN
COUNTERSINK ANGLE ANY ACCEPTABLE NUT
TEMP RATING 1200.0 DEG FAHRENHEIT NOMINAL
III PRECIOUS MATERIAL SILVER
MANUFACTURERS CODE 99207
MFR SOURCE CONTROLLING REFERENCE R1181P004

Restrictions/Controls & Freight Information | NSN 5310-00-178-0166

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:SItem contains silver
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 KE Naval ICP
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 5310-00-178-0166

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.
Materiel Management Aggregation CodeOPSX:TF-34
Fund CodeSFStock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
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
Q
EA : Each
Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Special Material Content9 Non-Hazardous or Non-Sensitive Item, does not require hazardous or special handling, packaging or precautions
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
Q
EA : Each