Product Details | CLOSE TOLERANCE SCREW

5305-01-578-9954 A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a specific diameter for items (1.000 IN.) (25 mm) or less in diameter. Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 IN.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

Part Alternates: NAS1132E4P, 5305-01-578-9954, 01-578-9954, 5305015789954, 015789954

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 27 OCT 2009 01-578-9954

Cross Reference | NSN 5305-01-578-9954

Part Number Cage Code Manufacturer
NAS1132E4P 80205 NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES

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Technical Data | NSN 5305-01-578-9954

Characteristic Specifications
THREAD SERIES DESIGNATOR UNJC
THREAD DIRECTION RIGHT-HAND
FASTENER LENGTH 0.511 INCHES MINIMUM AND 0.541 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION AMS QQ-P-416, TYPE 2, CLASS 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCY SCREW, MACHINE-PAN HEAD, CLOSE TOLERANCE, SHORT THREAD, OFFSET CRUCIFORM
MATERIAL DOCUMENT AND CLASSIFICATION AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
INTERNAL DRIVE STYLE OFFSET CRUCIFORM (TORQUE SET)
THREAD QUANTITY PER INCH 32
SURFACE TREATMENT CADMIUM OVERALL
HEAD HEIGHT 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM
MATERIAL STEEL CORROSION RESISTING OVERALL
GRIP DIAMETER 0.162 INCHES MINIMUM AND 0.163 INCHES MAXIMUM
THREAD LENGTH 0.276 INCHES NOMINAL
HEAD DIAMETER 0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM
HEAD STYLE PAN
SURFACE FINISH 322.0 MICROINCHES BEARING SURFACE OF HEAD
SPECIFICATION/STANDARD DATA 80205-NAS-1132 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NOMINAL THREAD DIAMETER 0.164 INCHES
GRIP LENGTH 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
THREAD CLASS 3A

Restrictions/Controls & Freight Information | NSN 5305-01-578-9954

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Electro-static Discharge Susceptible:ANo known Electrostatic Discharge (ESD) or Electromagnetic Interference (EMI) sensitivity
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
No Freight Information