2520-00-039-8978 VALVE ASY Index 2510-00-039-8980 SUPPORT

National Stock Number:
5305-00-039-8979

Federal Supply Class:
5305

National Item Identification Number:
000398979

Description:
SETSCREW

Detail:
An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.


Manufacturer Information:
5305000398979A00AME.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE
5305000398979SCY13E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE
799215719207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM


Techincal Specification:
FASTENER LENGTH3.234 INCHES MINIMUM AND 3.266 INCHES MAXIMUM
HEAD STYLEHEADLESS (SETSCREW)
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
MATERIAL
NOMINAL THREAD DIAMETER0.750 INCHES
POINT LENGTH1.141 INCHES MINIMUM AND 1.172 INCHES MAXIMUM
POINT STYLEBALL
POINT DIAMETER0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH2.078 INCHES MINIMUM AND 2.109 INCHES MAXIMUM
THREAD QUANTITY PER INCH16
THREAD SERIES DESIGNATORUNF


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