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		                        | National Stock Number:
 5305-01-253-4435
 
 Federal Supply Class:
 5305
 
 National Item Identification Number:
 012534435
 
 Description:
 SCREW,CAP,SOCKET HEAD
 
 Detail:
 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.
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 Manufacturer Information:
 
 | 903859-10 | 05257 | GENERAL DYNAMICS LAND SYSTEMS - CANADA CORPORATION |  | 903859-10 | 08353 | BRISTOL BABCOCK CANADA INC | 
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 Techincal Specification:
 
 | THREAD SERIES DESIGNATOR | UNC |  | NOMINAL THREAD DIAMETER | 0.112 INCHES |  | THREAD QUANTITY PER INCH | 40 |  | THREAD CLASS | 3A |  | THREAD DIRECTION | RIGHT-HAND |  | THREAD LENGTH | 0.440 INCHES MINIMUM AND |  |  | 0.520 INCHES MAXIMUM |  | FASTENER LENGTH | 0.490 INCHES MINIMUM AND |  |  | 0.520 INCHES MAXIMUM |  | MATERIAL | STEEL COMP 303 OVERALL |  | SURFACE TREATMENT | PASSIVATE OVERALL |  | HEAD STYLE | FLAT CHAMFER |  | HEAD DIAMETER | 0.176 INCHES MINIMUM AND |  |  | 0.183 INCHES MAXIMUM |  | HEAD HEIGHT | 0.108 INCHES MINIMUM AND |  |  | 0.112 INCHES MAXIMUM |  | INTERNAL DRIVE STYLE | SIX SPLINE |  | SPLINE MINOR DIAMETER | 0.096 INCHES MINIMUM AND |  |  | 0.098 INCHES MAXIMUM |  | SPLINE MAJOR DIAMETER | 0.115 INCHES NOMINAL |  | SPLINE WIDTH | 0.023 INCHES MINIMUM AND |  |  | 0.025 INCHES MAXIMUM | 
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