Product Details | HEXAGON SELF-LOCKING NUT

5310-00-680-5666 A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes NUT (1), SELF-LOCKING, CAP.

Part Alternates: NAS1021C8, MILN25027, 59FH820, 59FH-820, 5310-00-680-5666, 00-680-5666, 5310006805666, 006805666

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-680-5666

Drawings & Photos | NSN 5310-00-680-5666


Demand History | NSN 5310-00-680-5666

Part Number Request Date QTY Origin
MILN25027 2023-08-236 54 US
5310-00-680-5666 2021-01-25 4 KR
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
MILN25027 2011-02-49 5 US
MILN25027 2011-02-49 10 US
MILN25027 2011-02-49 40 US
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 5310-00-680-5666

Part Number Cage Code Manufacturer
59FH-820 56878 SPS TECHNOLOGIES, LLC DBA AEROSPACE DIVISION
MILN25027 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
NAS1021C8 80205 NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES

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Technical Data | NSN 5310-00-680-5666

Characteristic Specifications
THREAD SERIES UNF
NOMINAL THREAD SIZE 0.500 INCHES
THREAD QUANTITY PER INCH 20
THREAD CLASS 3B
THREAD DIRECTION RIGHT-HAND
MATERIAL STEEL OVERALL
SURFACE TREATMENT SILVER OVERALL
HARDNESS RATING NOT RATED
NUT HEIGHT 0.610 INCHES NOMINAL
WIDTH ACROSS FLATS 0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM
BEARING SURFACE TYPE ANY ACCEPTABLE
LOCKING FEATURE PREVAILING TORQUE ALL METAL DESIGN
TEMP RATING NOT RATED
SPECIFICATION/STANDARD DATA 80205-NAS1021 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
III PRECIOUS MATERIAL SILVER
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MILN25027

Restrictions/Controls & Freight Information | NSN 5310-00-680-5666

Category Code Description
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.
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.
Category Code Description
NMF Description 093480 BOLTS/NUTS METAL SILVER PLATED
Less than car load rating J 100.2
Less than truck load rating J 100.2
Water commodity Code 713 unknown
Originating Activity Code XX
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