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		                        | National Stock Number:
 5307-01-497-4724
 
 Federal Supply Class:
 5307
 
 National Item Identification Number:
 014974724
 
 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.
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 Manufacturer Information:
 
 | M63540/3-37-10 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |  | NASM63540/3-37-10 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE | 
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 Techincal Specification:
 
 | MATERIAL | STEEL CORROSION RESISTING |  | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A 493 ASSN STD SINGLE MATERIAL RESPONSE |  | SURFACE TREATMENT | PASSIVATE OVERALL |  | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |  | STYLE DESIGNATOR | SELF-LOCKING |  | HEAD DIAMETER | 0.382 INCHES NOMINAL |  | HEAD LENGTH | 0.144 INCHES MINIMUM AND |  |  | 0.150 INCHES MAXIMUM |  | DISTANCE ACROSS FLATS | 0.422 INCHES MINIMUM AND |  |  | 0.452 INCHES MAXIMUM |  | OVERALL LENGTH | 0.625 INCHES NOMINAL |  | THREAD SERIES DESIGNATOR | UNF NUT THREAD |  | NOMINAL THREAD SIZE | 0.250 INCHES NUT THREAD |  | THREAD CLASS | 2A NUT THREAD |  | THREAD QUANTITY PER INCH | 28 NUT THREAD |  | THREAD DIRECTION | RIGHT-HAND NUT THREAD |  | THREAD LENGTH | 0.625 INCHES NOMINAL NUT THREAD |  | LOCKING FEATURE | SELF-CLINCHING HEAD |  | SPEC/STD CONTROLLING DATA |  |  | MANUFACTURERS CODE | 81349 |  | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | M63540/3-37-10 | 
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