National Item Identification Number

01-309-8548
013098548
5305-01-309-8548
5305013098548

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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D9182

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99517

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VACCO INDUSTRIES
DIV VACCO
10350 VACCO ST
EL MONTE
CA
91733
626-450-6427

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99517

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VACCO INDUSTRIES
DIV VACCO
10350 VACCO ST
EL MONTE
CA
91733
626-450-6427

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80204

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Reference Numbers (Part Numbers)

AMS-5643-1/2-20 X2-5/8INLG
S1E10042 ITEM 29
VC211123-21D24
1/2-20X2-5/8 IN LG

Required Categories

THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR

Required Description

UNF
0.500 INCHES
20
3A
RIGHT-HAND
2.525 INCHES MINIMUM AND
2.625 INCHES MA