5360-00-478-5971 SPRING,HELICAL,COMPRESSION Index 5310-00-478-5973 NUT,PLAIN,CASTELLATED,HEXAGON

National Stock Number:
5310-00-478-5972

Federal Supply Class:
5310

National Item Identification Number:
004785972

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.)


Manufacturer Information:
47-140-114-104614TEXTRON SYSTEMS CORPORATION
47-140-114-180070LOCKHEED MARTIN CORPORATION


Techincal Specification:
BEARING SURFACE TYPEWASHER FACED
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5626 COND C2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4140 OVERALL
NOMINAL THREAD SIZE1.250 INCHES
NUT HEIGHT1.000 INCHES NOMINAL
NUT STYLEHEXAGON
WIDTH ACROSS FLATS1.750 INCHES NOMINAL
SURFACE TREATMENTCADMIUM OVERALL EXCEPT THREADS
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESUNEF
THREAD QUANTITY PER INCH18


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