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National Stock Number:
5310-01-121-1693
Federal Supply Class:
5310
National Item Identification Number:
011211693
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:
| 03A251-5CH | 1W025 | NORTHROP GRUMMAN SYSTEMS CORP | | 938.02.27.205 | S4080 | PILATUS AIRCRAFT LTD | | T-1156-5CH | 03038 | LONG-LOK, LLC | | H52826-5H | 15653 | HOWMET GLOBAL FASTENING SYSTEMS INC | | NAS509L5C | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE | | AD03A251-5CH | 92595 | NELSON STUD WELDING, INC |
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Techincal Specification:
| THREAD SERIES | UNJF | | NOMINAL THREAD SIZE | 0.312 INCHES | | THREAD QUANTITY PER INCH | 24 | | THREAD CLASS | 3B | | THREAD DIRECTION | LEFT-HAND | | MATERIAL | IRON ALLOY 660 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR | | AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OR | | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | NUT STYLE | HEXAGON | | NUT HEIGHT | 0.219 INCHES NOMINAL | | WIDTH ACROSS FLATS | 0.490 INCHES MINIMUM AND | | 0.502 INCHES MAXIMUM | | HOLE CONFIGURATION STYLE | CONFIGURATION B | | HOLE TYPE AND QUANTITY | 3 DRILLED | | DRILLED HOLE DIAMETER | 0.045 INCHES MINIMUM AND | | 0.050 INCHES MAXIMUM | | BEARING SURFACE TYPE | CHAMFERED | | COUNTERSINK ANGLE | 109.0 DEGREES MINIMUM AND | | 111.0 DEGREES MAXIMUM BOTH ENDS | | SPECIFICATION/STANDARD DATA | 80205-NAS509 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD | | BEARING SURFACE FINISH | 125.0 MICROINCHES |
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