5310-00-864-1816 WASHER,FLAT Index 5307-00-864-1821 STUD,SELF-LOCKING

National Stock Number:
5307-00-864-1820

Federal Supply Class:
5307

National Item Identification Number:
008641820

Description:
STUD,SELF-LOCKING

Detail:
A headed fastener threaded externally on a portion or on the full length of the shank. The head has projections on the underside or periphery, or is otherwise designed to be mechanically pressed and embedded in a metallic panel, or the like. It is securely locked in position by the displaced metal. For items that require locking rings, see BOLT, SELF-LOCKING and STUD, LOCKED IN. Excludes INSERT, SCREW THREAD.


Manufacturer Information:
132544A17028527L3HARRIS TECHNOLOGIES, INC.
132544A17028528ITT INDUSTRIES INC ITT AEROSPACE COMMUNICATIONS DIV EAST
234-1015P593B150RAYTHEON COMPANY
234-1015P5949956RAYTHEON COMPANY
510S(.125)-ST-125F892BUCKEYE FASTENERS INC.
510S125ST1286577PRECISION METAL PRODUCTS CO
8945613-7602734LOCKHEED MARTIN CORPORATION
7724031P3803538LOCKHEED MARTIN CORPORATION
70-1345065-841204655GENERAL DYNAMICS MISSION SYSTEMS, INC.
70-1345065-841211293GTE GOVERNMENT SYSTEMS CORP STRATEGIC SYSTEMS DIV
8945613-7611447L3 TECHNOLOGIES, INC.
860336-9113973LITTON SYSTEMS INC. DIV NAVIGATION SYSTEMS DIVISION
8945613-7649671LOCKHEED MARTIN CORP LOCKHEED MARTIN INFORMATION SYSTEMS AUTOMATED SPARES
66562-.125-1251506ACCURATE SCREW MACHINE CORP
NCS10-4-1207886DAR ELECTRONICS INC COMMERCIAL PRODUCTS DIV DBA NATIONAL RADIO CO
9167192-618876U S ARMY AVIATION AND MISSILE COMMAND
RCS105-(125)-1230343RADIO COMPONENT CORP
NCS-10(NF-2A)-4-1242498DAR ELECTRONICS INC DBA NATIONAL RADIO CO
NCS10(NF-2A)-4-1257227PICS SCREW MACHINE, INC.
NCS10-4-1271313VIKING TECHNOLOGIES, LTD.
M63540/3-28-681349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MIL-S-63540/381349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
DISTANCE ACROSS FLATS0.312 INCHES NOMINAL
HEAD DIAMETER0.259 INCHES MINIMUM AND 0.263 INCHES MAXIMUM
HEAD LENGTH0.112 INCHES MINIMUM AND 0.122 INCHES MAXIMUM
LOCKING FEATURESELF-CLINCHING HEAD
OVERALL LENGTH0.500 INCHES NOMINAL
MATERIALSTEEL COMP 303
NOMINAL THREAD SIZE0.190 INCHES NUT THREAD
THREAD QUANTITY PER INCH32 NUT THREAD
THREAD SERIES DESIGNATORUNF NUT THREAD
STYLE DESIGNATORSELF-LOCKING
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION171,5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD DIRECTIONRIGHT-HAND NUT THREAD
THREAD CLASS2A NUT THREAD
THREAD LENGTH0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM NUT THREAD


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