Product Details | CLOSE TOLERANCE SCREW

5305-01-409-1985 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: NAS1578A3T16L, 5305-01-409-1985, 01-409-1985, 5305014091985, 014091985

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 07 MAR 1995 01-409-1985

Drawings & Photos | NSN 5305-01-409-1985


Demand History | NSN 5305-01-409-1985

Part Number Request Date QTY Origin
5305-01-409-1985 2021-07-189 109 TW

Cross Reference | NSN 5305-01-409-1985

Part Number Cage Code Manufacturer
NAS1578A3T16L 80205 NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES

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Technical Data | NSN 5305-01-409-1985

Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER 0.190 INCHES
THREAD QUANTITY PER INCH 32
THREAD CLASS 3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.338 INCHES MINIMUM AND 0.388 INCHES MAXIMUM
FASTENER LENGTH 1.973 INCHES MINIMUM AND 2.003 INCHES MAXIMUM
MATERIAL STEEL COMP 4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
SURFACE TREATMENT CADMIUM AND CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TY-2CL-2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH 160000 POUNDS PER SQUARE INCH
HEAD STYLE C33 PAN NO. 2
HEAD DIAMETER 0.360 INCHES MINIMUM AND 0.374 INCHES MAXIMUM
HEAD HEIGHT 0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM
INTERNAL DRIVE STYLE D8 TORQUE SET
GRIP LENGTH 1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM
GRIP DIAMETER 0.188 INCHES MINIMUM AND 0.189 INCHES MAXIMUM
SURFACE FINISH 32.0 MICROINCHES BEARING SURFACE OF HEAD 32.0 MICROINCHES GRIP 32.0 MICROINCHES THREADS
SPECIAL FEATURES SELF-LOCKING
III END ITEM IDENTIFICATION PACER DAWN

Restrictions/Controls & Freight Information | NSN 5305-01-409-1985

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.
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