National Item Identification Number

01-253-4435
012534435
5305-01-253-4435
5305012534435

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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05257

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08353

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BABCOCK INDUSTRIES CANADA INC
BRISTOL BABCOCK DIV
234 ATWELL DR
F
REXDALE
M9W 5B3
CANADA
416-675-3820

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Reference Numbers (Part Numbers)

903859-10
903859-10

Required Categories

THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR

Required Description

UNC
0.112 INCHES
40
3A
RIGHT-HAND
0.440 INCHES MINIMUM AND
0.520 INCHES MA