Product Details | HEXAGON PLAIN NUT

5310-00-221-4839 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: FFN836, 5310-00-221-4839, 00-221-4839, 5310002214839, 002214839

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-221-4839

Drawings & Photos | NSN 5310-00-221-4839


Demand History | NSN 5310-00-221-4839

Part Number Request Date QTY Origin
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
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
FFN836 2008-07-195 20 US
FFN836 2008-06-171 200 US
FFN836 2008-02-39 1 US
FFN836 2007-10-298 100 US

Cross Reference | NSN 5310-00-221-4839

Part Number Cage Code Manufacturer
FFN836 81348 FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES

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Technical Data | NSN 5310-00-221-4839

Characteristic Specifications
THREAD SERIES UNC
NOMINAL THREAD SIZE 0.375 INCHES
THREAD QUANTITY PER INCH 16
THREAD CLASS 2B
THREAD DIRECTION RIGHT-HAND
MATERIAL STEEL OVERALL
HARDNESS RATING NOT RATED
NUT STYLE A12 HEXAGON
NUT HEIGHT 0.239 INCHES MINIMUM AND 0.257 INCHES MAXIMUM
WIDTH ACROSS FLATS 0.607 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
BEARING SURFACE TYPE CHAMFERED OR WASHER FACED
TEMP RATING NOT RATED
NONDEFINITIVE SPEC/STD DATA 2 TYPE AND 13 STYLE
MANUFACTURERS CODE 81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE FFN836

Restrictions/Controls & Freight Information | NSN 5310-00-221-4839

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
No Freight Information