5310-00-253-2796 NUT,PLAIN,HEXAGON Index 5330-00-253-2799 SEAL,PLAIN ENCASED

National Stock Number:
5310-00-253-2798

Federal Supply Class:
5310

National Item Identification Number:
002532798

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:
12387305-5019207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
2 1-4 X 4 1-2 U NC HEX (SPL)D9182ZF INDUSTRIEANTRIEBE WITTEN GMBH
FFN83681348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
D2617 PIECE-687045WALZ & KRENZER INC
MS51967-5096906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
2 1/4 - 4 1/2 U NC - 2BD9182ZF INDUSTRIEANTRIEBE WITTEN GMBH


Techincal Specification:
THREAD SERIESUNC
NOMINAL THREAD SIZE2.250 INCHES
THREAD QUANTITY PER INCH4.5
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM AND
CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING90.0 ROCKWELL B MINIMUM AND
32.0 ROCKWELL C MAXIMUM
NUT STYLEHEXAGON
NUT HEIGHT1.874 INCHES MINIMUM AND
1.970 INCHES MAXIMUM
WIDTH ACROSS FLATS3.262 INCHES MINIMUM AND
3.375 INCHES MAXIMUM
BEARING SURFACE TYPEFLAT OR
CHAMFERED
NONDEFINITIVE SPEC/STD DATA2 TYPE AND
4 STYLE AND
B GRADE
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCEFFN836
MANUFACTURERS CODE96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEMS51967-50


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