Product Details | HEXAGON PLAIN NUT

5310-01-303-4059 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: S-535 PIECE 18, S-535 PIECE 18L1, S535PIECE18, S535PIECE18L1, MILDTL1222, MIL-DTL-1222, MILS1222, MIL-S-1222, MILS1222L1, MIL-S-1222L1, 5310-01-303-4059, 01-303-4059, 5310013034059, 013034059

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 01-303-4059

Drawings & Photos | NSN 5310-01-303-4059


Demand History | NSN 5310-01-303-4059

Part Number Request Date QTY Origin
MILDTL1222 2025-03-72 40 United States
MILDTL1222 2025-02-49 40 United States
MILS1222 2025-01-22 8 United States
MILS1222 2025-01-22 8 United States
MILDTL1222 2023-06-159 12 United States
MILS1222 2015-03-89 3000 BH
MILS1222 2014-08-230 1 US
MILDTL1222 2013-06-169 59 US
MILS1222 2012-07-209 4 United States
MILS1222 2012-03-74 1 US
MILS1222 2011-02-49 3 US
MILS1222 2011-02-49 4 US
MILS1222 2011-02-49 5 US
MILS1222 2011-02-49 10 US
MILS1222 2011-02-49 18 US
MILS1222 2011-02-49 35 US
MILS1222 2011-02-49 40 US
MILS1222 2011-02-49 42 US
MILS1222 2011-02-49 185 US
MILS1222 2011-02-49 195 US

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Technical Data | NSN 5310-01-303-4059

Characteristic Specifications
THREAD SERIES UN
NOMINAL THREAD SIZE 1.500 INCHES
THREAD QUANTITY PER INCH 8
THREAD CLASS 2B
THREAD DIRECTION RIGHT-HAND
MATERIAL STEEL UNS K14510 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION ASTM A194,GR 4 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING 24.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
NUT STYLE A12 HEXAGON
NUT HEIGHT 1.433 INCHES MINIMUM AND 1.505 INCHES MAXIMUM
WIDTH ACROSS FLATS 2.300 INCHES MINIMUM AND 2.375 INCHES MAXIMUM
BEARING SURFACE TYPE CHAMFERED OR WASHER FACED
TEMP RATING NOT RATED
SPECIAL FEATURES 3 VL MANIFOLD
NONDEFINITIVE SPEC/STD DATA 3 TYPE
DEPARTURE FROM CITED DOCUMENT QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
CRITICALITY CODE JUSTIFICATION ZZZW
III SUPPLEMENTARY FEATURES STYLE A OR B
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MIL-S-1222

Restrictions/Controls & Freight Information | NSN 5310-01-303-4059

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
Category Code Description
No Freight Information