5340-01-499-5986 PAD EYE Index 4820-01-499-5988 VALVE,SAFETY RELIEF

National Stock Number:
5310-01-499-5987

Federal Supply Class:
5310

National Item Identification Number:
014995987

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:
754-7068540-1453711NAVAL SEA SYSTEMS COMMAND
H841-0404-1496169ELECTRIC BOAT CORPORATION


Techincal Specification:
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-F467, SERIES 400 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY 400 OVERALL
PROPRIETARY CHARACTERISTICSPACS
NOMINAL THREAD SIZE2.500 INCHES
NUT HEIGHT2.401 INCHES MINIMUM AND 2.505 INCHES MAXIMUM
NUT STYLEHEXAGON
WIDTH ACROSS FLATS3.750 INCHES MINIMUM AND 3.875 INCHES MAXIMUM
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH16
THREAD SERIESUNC


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