Product Details | HEXAGON PLAIN NUT

5310-00-159-3556 A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see LOCKNUT, ELECTRICAL CONDUIT. See also LOCKNUT, TUBE FITTING. For items having a thickness (or height) exceeding two times the width across the flats, use POST, ELECTRICAL-MECHANICAL EQUIPMENT. (When height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.

Part Alternates: 2585520, 5310-00-159-3556, 00-159-3556, 5310001593556, 001593556

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 24 OCT 1971 00-159-3556

Drawings & Photos | NSN 5310-00-159-3556


Demand History | NSN 5310-00-159-3556

Part Number Request Date QTY Origin
5310-00-159-3556 2025-07-202 218 DIBBS
5310-00-159-3556 2025-04-102 10 US
5310-00-159-3556 2024-09-266 218 DIBBS
5310-00-159-3556 2019-08-227 108 DIBBS
5310-00-159-3556 2016-07-209 60 us
5310-00-159-3556 2016-06-173 60 United States

Cross Reference | NSN 5310-00-159-3556

Part Number Cage Code Manufacturer
2585520 80064 NAVAL SHIP SYSTEMS COMMAND

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Technical Data | NSN 5310-00-159-3556

Characteristic Specifications
THREAD SERIES UNF
NOMINAL THREAD SIZE 0.375 INCHES
THREAD QUANTITY PER INCH 24
THREAD CLASS 2B
THREAD DIRECTION RIGHT-HAND
MATERIAL STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-624,COMP 1335 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-624 COMP 4130 THRU 4140 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT CADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING NOT RATED
NUT STYLE A12 HEXAGON
NUT HEIGHT 0.320 INCHES MINIMUM AND 0.337 INCHES MAXIMUM
WIDTH ACROSS FLATS 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
HOLE CONFIGURATION STYLE H2 CONFIGURATION B
HOLE TYPE AND QUANTITY 3 DRILLED
DRILLED HOLE DIAMETER 0.052 INCHES NOMINAL
BEARING SURFACE TYPE WASHER FACED
TEMP RATING NOT RATED

Restrictions/Controls & Freight Information | NSN 5310-00-159-3556

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.
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 PA Marine Corps Logistics Base
Albany, GA 31704-1128
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 5310-00-159-3556

Category Code Description
Stores Account Code1Marine Corps Stock Fund Account Item.
Combat Essentiality Code2Non-Critical Repair Part. Repair parts or major components whose failure in an end item will not render the end item inoperative or reduce its effectiveness below the minimum acceptable level of efficiency, and which do not fit the definition of Code 3 or 4 items.
Materiel Management CodeBAll CommoditiesDefense Logistics Agency, (DLA,)
Echelon Management Code2ICP/DSSC Marine Corps-managed Recoverability Code D items and Defense Logistics Agency (DLA)/TACOM/GSA) items which the integrated manager has not decontrolled.
Echelon Identification CodeKReserved
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDMU.S. Marine Corps
Service OrganizationMU.S. Marine Corps
ReparabilityZNonreparable item. When unserviceable, condemn and dispose at the level indicated by the first digit of the maintenance code.
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
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 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
H
EA : Each