National Item Identification Number

01-277-0439
012770439
5305-01-277-0439
5305012770439

National Stock Number

Item Name

SCREW,CAP,HEXAGON HEAD

Federal Supply Class

5305

Description

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.

Commercial and Government Entity Code (Supplier Data)

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80204

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75394

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EMERSON POWER TRANSMISSION
CORPORATION
7565 HARMANS RD
HANOVER
MD
21076
410-768-2000

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Reference Numbers (Part Numbers)

B1821BH125C275N
MS90728-272
740-6-00112PC 22

Required Categories

THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR

Required Description

UNC
1.250 INCHES
7
2A
RIGHT-HAND
2.205 INCHES MINIMUM AND
2.750 INCHES MAX