4320-00-012-4823 IMPELLER,PUMP,CENTRIFUGAL Index 2040-00-012-4827 CHUTE,MATERIAL HAND

National Stock Number:
5310-00-012-4824

Federal Supply Class:
5310

National Item Identification Number:
000124824

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:
12482419207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
12482424617GENERAL MOTORS CORP
1667606350ASSET SYSTEMS, INC.
6464-346717PETTIBONE LLC
1248247X677GENERAL MOTORS LLC
FF-N-83681348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
MS35691-50296906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
THREAD SERIESUNC
NOMINAL THREAD SIZE0.312 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE J995,GRADE 2 NATIONAL SPEC SINGLE MATERIAL RESPONSE OR
FF-N-836,GRADE B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND
CHROMATE OR
CHROMATE ZINC OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 3 FED SPEC 1ST TREATMENT RESPONSE OR
QQ-Z-325,TYPE 2,CLASS 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
HARDNESS RATING32.0 ROCKWELL C MAXIMUM
NUT STYLEHEXAGON
NUT HEIGHT0.180 INCHES MINIMUM AND
0.195 INCHES MAXIMUM
WIDTH ACROSS FLATS0.489 INCHES MINIMUM AND
0.500 INCHES MAXIMUM
BEARING SURFACE TYPEFLAT
SPECIFICATION/STANDARD DATA81348-FF-N-836 GOVERNMENT SPECIFICATION AND
96906-MS35691/CANCELED/ GOVERNMENT STANDARD AND
24617-124824 MANUFACTURERS STANDARD
NONDEFINITIVE SPEC/STD DATA2 TYPE AND
5 STYLE AND
5/16-18UNC2B SIZE
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY MATERIAL,TABLE 3,GRADE B
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCEFF-N-836


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