Product Details | HEXAGON PLAIN NUT

5310-00-012-0376 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: MS35690505, MS35690-505, V11001031, V11-001-031, FFN836, FF-N-836, 120376, 25704281280130, 25704-281280-13-0, 33797S7, 80014, 5310-00-012-0376, 00-012-0376, 5310000120376, 000120376

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-012-0376

Drawings & Photos | NSN 5310-00-012-0376


Demand History | NSN 5310-00-012-0376

Part Number Request Date QTY Origin
FFN836 2025-03-84 32 Japan
FFN836 2024-10-291 190 US
FFN836 2023-09-258 100 TR
FFN836 2021-11-307 200 United States
FFN836 2021-08-228 100 United States
FFN836 2019-02-44 288 US
FFN836 2018-02-32 2 US
FFN836 2017-05-123 25 United States
FF-N-836 2016-05-145 48 Spain
FFN836 2012-12-341 1 US
FFN836 2010-11-322 100 United Kingdom
FFN836 2010-08-218 1 US
FFN836 2010-08-218 1 US
FFN836 2010-08-218 1 US
FFN836 2010-08-218 1 US
FFN836 2010-03-90 4 us
FFN836 2010-03-81 50 United States
FFN836 2010-02-46 50 United States
FFN836 2009-07-183 1000 US
FFN836 2009-05-141 580 US
5310-00-012-0376 2009-05-125 148 US
FFN836 2008-07-195 20 US
FFN836 2008-06-171 200 US
80014 2008-02-59 1 US
FFN836 2008-02-39 1 US
FFN836 2007-10-298 100 US

Cross Reference | NSN 5310-00-012-0376

Part Number Cage Code Manufacturer
120376 19207 U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
120376 24617 GENERAL MOTORS CORP
120376 7X677 GENERAL MOTORS LLC DBA GENERAL MOTORS
25704-281280-13-0 D1839 BUNDESAMT FUER AUSRUESTUNG,
25704-281280-13-0 D2692 KRAUSS-MAFFEI WEGMANN GMBH & CO. KG-WERK KASSEL-
33797S7 23040 FORD MOTOR CO FORD PARTS AND SERVICE DIV
80014 F0590 THOMSON/HOUSTON HOTCHKISS/BRANDT
80014 F3880 THALES AIR DEFENCE
80014 F8224 THALES AIR SYSTEMS SA
FF-N-836 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
MS35690-505 96906 MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS
MS35690-505 D5589 FEINMECHANISCHE WERKE MAINZ GMBH
MS35690-505 D9893 LIEBHERR-AEROSPACE LINDENBERG GMBH
V11-001-031 97403 CECOM LR CENTER

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Technical Data | NSN 5310-00-012-0376

Characteristic Specifications
THREAD SERIES UNC
NOMINAL THREAD SIZE 0.312 INCHES
THREAD QUANTITY PER INCH 18
THREAD CLASS 2B
THREAD DIRECTION RIGHT-HAND
MATERIAL STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION SAE J995,GRADE 2 ASSN STD SINGLE MATERIAL RESPONSE OR FF-N-836,TABLE 4,GRADE B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT CADMIUM AND CHROMATE OR CHROMATE ZINC OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TYPE 2,CLASS 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TYPE 2,CLASS 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
HARDNESS RATING 95.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM
NUT STYLE A12 HEXAGON
NUT HEIGHT 0.258 INCHES MINIMUM AND 0.273 INCHES MAXIMUM
WIDTH ACROSS FLATS 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
BEARING SURFACE TYPE FLAT
TEMP RATING NOT RATED
SPECIFICATION/STANDARD DATA 24617-120376 MANUFACTURERS STANDARD AND 81348-FF-N-836 GOVERNMENT SPECIFICATION AND 96906-MS35690/CANCELED/ GOVERNMENT STANDARD
NONDEFINITIVE SPEC/STD DATA 2 TYPE AND 4 STYLE AND 5/16-18UNC SIZE
DEPARTURE FROM CITED DOCUMENT AS MODIFIED BY MATL
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE FF-N-836

Restrictions/Controls & Freight Information | NSN 5310-00-012-0376

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:UPrecious metal type is unknown
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 093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3)
Less than car load rating U 50
Less than truck load rating W Rating Variable
Water commodity Code 573 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