National Item Identification Number

00-548-5790
005485790
5305-00-548-5790
5305005485790

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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26233

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14438

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NYLOK CORPORATION
DBA NYLOK CHICAGO
6465 W PROESEL AVE
LINCOLNWOOD
IL
60712
847-674-9680

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Reference Numbers (Part Numbers)

NS140DS420N7C
S4DS420-7C

Required Categories

THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR

Required Description

UNC
0.250 INCHES
20
2A
RIGHT-HAND
0.338 INCHES MINIMUM AND
0.438 INCHES MA