5961-01-454-3089 SEMICONDUCTOR DEVICE,DIODE Index 2540-01-454-3091 BOX,ACCESSORIES STOWAGE

National Stock Number:
5305-01-454-3090

Federal Supply Class:
5305

National Item Identification Number:
014543090

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:
12414325-008076M6BAE SYSTEMS LAND & ARMAMENTS L.P.
12414325-0080FW39BAE SYSTEMS TACTICAL VEHICLE SYSTEMS LP
12414325-00819207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
DIN7991M4X0.7X8-10.9-A2DD8286DIN DEUTSCHES INSTITUT FUER NORMUNGEV


Techincal Specification:
COUNTERSINK ANGLE90.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM
EXTERNAL THREAD TOLERANCE CLASS6G
FASTENER LENGTH7.71 MILLIMETERS MINIMUM AND 8.29 MILLIMETERS MAXIMUM
HEAD DIAMETER7.64 MILLIMETERS MINIMUM AND 8.00 MILLIMETERS MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONISO 898 PART 1 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL PROPERTY CLASS 10.9 OVERALL
NOMINAL THREAD DIAMETER4.0 MILLIMETERS
WIDTH ACROSS FLATS2.52 MILLIMETERS MINIMUM AND 2.60 MILLIMETERS MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONDIN 267 PART 9 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTZINC AND CHROMATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH3.31 MILLIMETERS MINIMUM
THREAD PITCH IN MILLIMETERS0.7
THREAD SERIES DESIGNATORM


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