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National Stock Number:
5310-01-612-0228
Federal Supply Class:
5310
National Item Identification Number:
016120228
Description:
NUT,PLAIN,HEXAGON
Detail:
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.)
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Manufacturer Information:
| 25CNHH5M | 9R350 | MILITARY & COMMERCIAL FASTENERS CORP | | MCF1648 | 9R350 | MILITARY & COMMERCIAL FASTENERS CORP |
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Techincal Specification:
| BEARING SURFACE TYPE | FLAT | | HARDNESS RATING | 32.0 ROCKWELL C MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE J995,GR 5 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | 1/4-20 HEAVY HEX NUT CORROSION PREVENTITIVE COATING | | PROPRIETARY CHARACTERISTICS | PACS | | NOMINAL THREAD SIZE | 0.250 INCHES | | NUT HEIGHT | 0.218 INCHES MINIMUM AND 0.250 INCHES MAXIMUM | | NUT STYLE | HEXAGON | | SPECIAL FEATURES | NUT IS RATED AT 133,000PSI TENSILE STRENGTH MINIMUM AND PROOF LOAD OF 4,250 POUNDS MINIMUM | | WIDTH ACROSS FLATS | 0.488 INCHES MINIMUM AND 0.500 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | CORROSION PROTECTIVE COATING IAW DRAWING MCF1496 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | THREAD CLASS | 2B | | THREAD DIRECTION | RIGHT-HAND | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES | UNC |
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