Product Details | TAPPING SCREW

5305-01-421-3944 A hardened externally threaded fastener whose thread extends to the bearing surface of the head. The thread may be fluted or otherwise designed to cut or form its own mating thread. Excludes SCREW, ASSEMBLED WASHER.

Part Alternates: NAS384612P, NAS384-6-12P, 5305-01-421-3944, 01-421-3944, 5305014213944, 014213944

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 07 NOV 1995 01-421-3944

Drawings & Photos | NSN 5305-01-421-3944


Cross Reference | NSN 5305-01-421-3944

Part Number Cage Code Manufacturer
NAS384-6-12P 80205 NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES

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Technical Data | NSN 5305-01-421-3944

Characteristic Specifications
NONMACHINE THREAD STYLE A13 GIMLET POINT
NONMACHINE NOMINAL THREAD DIAMETER 0.190 INCHES
FASTENER LENGTH 0.750 INCHES NOMINAL
MATERIAL STEEL OVERALL
SURFACE TREATMENT CHROMIUM OVERALL
HEAD STYLE C54 OVAL COUNTERSUNK
HEAD DIAMETER 0.255 INCHES MINIMUM AND 0.277 INCHES MAXIMUM
COUNTERSINK ANGLE 98.0 DEGREES MINIMUM AND 100.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE D1 CROSS RECESS TYPE 1

Restrictions/Controls & Freight Information | NSN 5305-01-421-3944

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