5310-14-298-4012 WASHER,FLAT Index 5310-14-298-8575 WASHER,SPRING TENSION

National Stock Number:
5305-14-298-4055

Federal Supply Class:
5305

National Item Identification Number:
142984055

Description:
SCREW,MACHINE

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:
22272BC040020LF0111BUREAU NORMALISATION AERONAUTIQUEESPACE
22272BC040020LF0188BLANC AERO INDUSTRIES - GROUPE LISIAEROSPACE
L22272-40-20BCLF0111BUREAU NORMALISATION AERONAUTIQUEESPACE
T017-833F0181ALCATEL TELSPACE UNITE ELECTRONIQUE ET ELECTROMAGNETISME
22272BC040020LF6760DEMAT SA
22272BC040020LF7411MECAERO ARCONIC FASTENING SYSTEMS AND RINGS TOULOUSE


Techincal Specification:
NOMINAL THREAD DIAMETER4.0 MILLIMETERS
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONF3025 AIR 9160C MIL STD SINGLE MATERIAL RESPONSE
SCREW MATERIALSTEEL
SCREW SURFACE TREATMENTCADMIUM AND CHROMATE
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONNF L 09-753 CODE L NATIONAL SPEC SINGLE TREATMENT RESPONSE
TEST DATA DOCUMENTF3025-AIR 9173 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH20.0 MILLIMETERS NOMINAL
THREAD SERIES DESIGNATORISO M
THREAD PITCH IN MILLIMETERS0.7
EXTERNAL THREAD TOLERANCE CLASS4H
FASTENER LENGTH20.0 MILLIMETERS NOMINAL
HEAD DIAMETER7.0 MILLIMETERS NOMINAL
HEAD HEIGHT2.8 MILLIMETERS NOMINAL
HEAD STYLEPAN
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
MINIMUM TENSILE STRENGTH880 MEGAPASCALS


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