5305-01-268-2675 SCREW ASSEMBLY,PANEL Index 5310-01-268-2677 WASHER,FLAT

National Stock Number:
5310-01-268-2676

Federal Supply Class:
5310

National Item Identification Number:
012682676

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:
145-2650515-2117077LOCKHEED MARTIN CORPORATION
2650515-2117077LOCKHEED MARTIN CORPORATION


Techincal Specification:
THREAD SERIESUNF
NOMINAL THREAD SIZE1.500 INCHES
THREAD QUANTITY PER INCH12
THREAD CLASS2B
THREAD DIRECTIONLEFT-HAND
MATERIALSTEEL COMP 316 OR
IRON ALLOY 660 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,COND B FED SPEC 1ST MATERIAL RESPONSE OR
AMS 5732 ASSN STD 2ND MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NUT STYLEHEXAGON
NUT HEIGHT0.808 INCHES MINIMUM AND
0.880 INCHES MAXIMUM
WIDTH ACROSS FLATS2.175 INCHES MINIMUM AND
2.250 INCHES MAXIMUM
BEARING SURFACE TYPECHAMFERED OR
WASHER FACED
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT


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