National Item Identification Number

00-273-6537
002736537
5305-00-273-6537
5305002736537

National Stock Number

Item Name

SCREW,SHOULDER

Federal Supply Class

5305

Description

An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 IN.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below No. 10 (0.190 IN.) (5 mm) nominal diameter. No. 10 (0.190 IN.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use SCREW, EXTERNALLY RELIEVED BODY. For items with a No. 10 (0.190 IN.) (5 mm) or larger thread diameter without an inserted driver head, use BOLT, SHOULDER. Excludes BOLT, INTERNAL WRENCHING and SCREW, CAP, SOCKET HEAD.

Commercial and Government Entity Code (Supplier Data)

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19207

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19206

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Reference Numbers (Part Numbers)

A0S0-01006910
298673PC3
323875PC2
342183
5222430

Required Categories

THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR

Required Description

UNF
0.438 INCHES
20
3A
RIGHT-HAND
0.781 INCHES MINIMUM
1.966 INCHES NOMINA