5305-01-498-3178 SCREW,CAP,SOCKET HEAD Index 5305-01-498-3180 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-498-3179

Federal Supply Class:
5305

National Item Identification Number:
014983179

Description:
SCREW,CAP,SOCKET HEAD

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.


Manufacturer Information:
0.31218UNC2A4.000T2G574SEA81349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MIL-DTL-122281349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MIL-S-122281349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
FASTENER LENGTH3.000 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONASTMA574 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL UNS K03104 OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES
SURFACE TREATMENTOXIDE OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH18
THREAD SERIES DESIGNATORUNC


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