National Item Identification Number

01-183-8721
011838721
5305-01-183-8721
5305011838721

National Stock Number

Item Name

SCREW,CAP,SOCKET HEAD

Federal Supply Class

5305

Description

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.

Commercial and Government Entity Code (Supplier Data)

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56563

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Reference Numbers (Part Numbers)

HT04R40F079
MS3213-4L
MS3213-4L
NAS3213-4L

Required Categories

THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR

Required Description

UNC
0.112 INCHES
40
2A
RIGHT-HAND
0.360 INCHES MINIMUM AND
0.438 INCHES MA