National Item Identification Number

01-021-0612
010210612
5305-01-021-0612
5305010210612

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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81873

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Reference Numbers (Part Numbers)

28002743

Required Categories

THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD CLASS
THREAD DIRECTIO

Required Description

UNC
0.138 INCHES
3A
RIGHT-HAND
0.250 INCHES NOMINAL
0.250 INCHES NOMINAL
S