5331-14-278-5548 O-RING Index 5940-14-278-6309 TERMINAL BOARD

National Stock Number:
5305-14-278-5566

Federal Supply Class:
5305

National Item Identification Number:
142785566

Description:
SCREW,CAP,HEXAGON HEAD

Detail:
(ALL EXCEPT USA) A HEADED EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION MAY EXTEND ON PART OR WHOLE OF ITS SHANK. THE HEAD IS DESIGNED TO BE HELD OR DRIVEN WITH A TOOL. THE THREADED PORTION IS CYLINDRICAL AND ITS DIAMETER 1.6 MM OR MORE. FOR ITEMS WITH DIAMETERS BELOW 1.6 MM SEE SCREW, INSTRUMENT. THE ITEM IS DESIGNED TO BE DRIVEN IN A PREEXISTING MATING SCREWTHREAD OR TO ACCOMMODATE A NUT, INSURING ASSEMBLING OF PARTS, WITH THE PART OPPOSITE THE HEAD ACTING AS A NUT, OR INSURING A GRIP BETWEEN THE BEARING SURFACE OF ITS HEAD AND THAT OF A NUT SCREWED ON ITS END. THE THREADED END MAY HAVE A PILOT FOR EASIER DRIVING INTO A DRILLED HOLE. IF THE POINT IS DESIGNED TO PREVENT OR RESTRICT RELATIVE MOVEMENTS OF PARTS SEE SETSCREW. DO NOT USE IF A MORE SPECIFIC ITEM NAME APPLIES. IF THE ITEM IS FURNISHED WITH ATTACHMENTS SUCH AS NUT(S), WASHER(S), PIN(S), AND THE LIKE, SEE SCREW ASSEMBLY OR BOLT (AS MODIFIED).


Manufacturer Information:
22125BC050018LF0111BUREAU NORMALISATION AERONAUTIQUEESPACE
22125BC050018LF0189MESSIER-DOWTY SA
22125BC050018LF1236PREAULT TECHNOLOGIES
22125BC050018LF6760DEMAT SA
22125BC050018LF7411MECAERO ARCONIC FASTENING SYSTEMS AND RINGS TOULOUSE
412180F0302SAFRAN TRANSMISSION SYSTEMS
412180F6137SAFRAN LANDING SYSTEMS
9801051814F0228SAFRAN HELICOPTER ENGINES
L22125-50-18BCLF0111BUREAU NORMALISATION AERONAUTIQUEESPACE
NFL22-125-BC-050-018-LF0542INDRAERO SIREN


Techincal Specification:
EXTERNAL THREAD TOLERANCE CLASS4H
FASTENER LENGTH18.0 MILLIMETERS NOMINAL
HEAD HEIGHT3.0 MILLIMETERS NOMINAL
HEAD STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONF3025 AIR 9160C MIL STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 35NC6 OVERALL
MINIMUM TENSILE STRENGTH880 MEGAPASCALS
MINIMUM YIELD STRENGTH740 MEGAPASCALS
NOMINAL THREAD DIAMETER5.0 MILLIMETERS
WIDTH BETWEEN FLATS8.0 MILLIMETERS NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONNF L 09-753 CODE L NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
TEST DATA DOCUMENTF3025-AIR 9173 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH14.0 MILLIMETERS NOMINAL
THREAD SERIES DESIGNATORISO M
THREAD PITCH IN MILLIMETERS0.8


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