National Item Identification Number

01-021-4911
010214911
5305-01-021-4911
5305010214911

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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04808

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Reference Numbers (Part Numbers)

607C170H16

Required Categories

THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR

Required Description

UNC
0.500 INCHES
13
2A
RIGHT-HAND
1.250 INCHES NOMINAL
1.250 INCHES NOMINA