National Item Identification Number

01-056-3509
010563509
5305-01-056-3509
5305010563509

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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Reference Numbers (Part Numbers)

175A3300PC1

Required Categories

THREAD CLASS
THREAD LENGTH
FASTENER LENGTH
REFERENCE NUMBER DIFFERENTIATING C

Required Description

2A
2.187 INCHES NOMINAL
5.219 INCHES NOMINAL
MATERIAL WILL BE IN ACCORDANCE W