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
THREAD QUANTITY PER INCH18
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
SURFACE TREATMENTOXIDE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2A


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