6680-01-455-1288 METER,FLUID FLOW INDICATING,DIFF Index 1560-01-455-1290 PROBE,REFUELING,AIRCRAFT

National Stock Number:
5310-01-455-1289

Federal Supply Class:
5310

National Item Identification Number:
014551289

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:
253872 ASSY 98 PIECE 1253711NAVAL SEA SYSTEMS COMMAND
253872 ASSY 99 PIECE 1253711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281, CL B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY R-405 OVERALL
NOMINAL THREAD SIZE0.625 INCHES
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH11
THREAD SERIESUNC


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