7644-01-472-3850 DIGITAL GEOSPATIAL PRODUCTS Index 4710-01-472-3852 TUBE,BENT,METALLIC

National Stock Number:
5310-01-472-3851

Federal Supply Class:
5310

National Item Identification Number:
014723851

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:
98003A003601365MARINE CORPS LOGISTICS COMMAND TECHNICAL DATA REPOSITORY CUSTOMER SERVICE-MICC LOGISTICS OPERATIONS CENTER


Techincal Specification:
THREAD SERIESUNC
NOMINAL THREAD SIZE0.250 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL COMP 4130 AND
STEEL COMP 4340 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE4130 ASSN STD SINGLE MATERIAL RESPONSE OR
SAE4340 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPHOSPHATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-DTL-16232 MIL STD SINGLE TREATMENT RESPONSE OR
MI L-STD-171 MIL STD SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND
35.0 ROCKWELL C MAXIMUM
NUT STYLEHEXAGON
NUT HEIGHT0.305 INCHES NOMINAL
WIDTH ACROSS FLATS0.425 INCHES NOMINAL
BEARING SURFACE TYPEFLAT
NUT COUNTERBORE DEPTH0.092 INCHES NOMINAL FIRST END
COUNTERBORE DIAMETER0.280 INCHES NOMINAL FIRST END


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