Product Details | HEXAGON PLAIN NUT

5310-01-343-8828 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: MILN25027, MIL-N-25027, 0.250-20UNC3B, 025020UNC3B, 5310-01-343-8828, 01-343-8828, 5310013438828, 013438828

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 19 AUG 1991 01-343-8828

Drawings & Photos | NSN 5310-01-343-8828


Demand History | NSN 5310-01-343-8828

Part Number Request Date QTY Origin
MILN25027 2023-08-236 54 US
MILN25027 2020-09-262 156 US
MILN25027 2012-06-157 16 United States
MILN25027 2012-05-139 15 United States
MILN25027 2011-09-265 28 US
MILN25027 2011-09-264 25 Canada
5310-01-343-8828 2011-04-103 6 DIBBS
MILN25027 2011-02-49 5 US
MILN25027 2011-02-49 10 US
MILN25027 2011-02-49 40 US
5310-01-343-8828 2011-02-38 6 DIBBS
MILN25027 2010-06-181 50 United States
MILN25027 2010-04-111 5000 US
MILN25027 2009-11-321 560 US
MILN25027 2009-10-281 8 Canada
MILN25027 2008-09-270 50 Italy

Cross Reference | NSN 5310-01-343-8828

Part Number Cage Code Manufacturer
0.250-20UNC3B 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
MIL-N-25027 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY

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Technical Data | NSN 5310-01-343-8828

Characteristic Specifications
THREAD SERIES UNC
NOMINAL THREAD SIZE 0.250 INCHES
THREAD QUANTITY PER INCH 20
THREAD CLASS 3B
THREAD DIRECTION RIGHT-HAND
MATERIAL NICKEL ALLOY R-405 OR NICKEL ALLOY 400 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION QQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENT ZINC OVERALL
HARDNESS RATING 80.0 ROCKWELL B MINIMUM
NUT STYLE A12 HEXAGON
NUT HEIGHT 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM
WIDTH ACROSS FLATS 0.492 INCHES MINIMUM AND 0.504 INCHES MAXIMUM
BEARING SURFACE TYPE CHAMFERED
TEMP RATING 250.0 DEG FAHRENHEIT MINIMUM
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MIL-N-25027
MANUFACTURERS CODE 81349
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE 0.250-20UNC3B

Restrictions/Controls & Freight Information | NSN 5310-01-343-8828

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 093470 BOLTS/NUTS I/S
Less than car load rating
Less than truck load rating Q 70.0
Water commodity Code 713 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 5310-01-343-8828

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
Q
EA : Each