4540-01-132-8544 HEATING ELEMENT,ELECTRICAL,NONIM Index 5310-01-132-8546 NUT,SHEET SPRING

National Stock Number:
5310-01-132-8545

Federal Supply Class:
5310

National Item Identification Number:
011328545

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:
10109658A486GNIMIKKEISTOKESKUS NCB FINLAND
74A670224-200176301THE BOEING COMPANY


Techincal Specification:
DRILLED HOLE DIAMETER0.070 INCHES MINIMUM AND 0.075 INCHES MAXIMUM
BEARING SURFACE TYPECHAMFERED
COUNTERSINK ANGLE85.0 DEGREES MINIMUM AND 95.0 DEGREES MAXIMUM BOTH ENDS
HOLE CONFIGURATION STYLECONFIGURATION B
HOLE TYPE AND QUANTITY3 DRILLED
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 630 OVERALL
NOMINAL THREAD SIZE1.750 INCHES
NUT HEIGHT0.250 INCHES NOMINAL
NUT STYLEHEXAGON
WIDTH ACROSS FLATS2.000 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONPS13001,FSCM 76301 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESUNS
THREAD PITCH DIAMETERS+1.7175 TO 1.7222 INCHES
THREAD QUANTITY PER INCH20


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