NSN 5305-01-521-5145
High Torque Screw
Per asme b46.1. "d" diameter underside of head, root of threads and thread flanks 32 microinches ra. All other surfaces, 125 microinches ra..
Manufacturer part number BACS12HW3AU8 for national stock number 5305015215145.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-01-521-5145.
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MPN or Model
BACS12HW3AU8
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Schedule B
7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment) -
NMF (National Motor Freight)
096640 - Screws, Iron Or Steel -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
0.276 inches -
Fastener Length
Between 0.761 inches and 0.791 inches -
Head Style
Flat chamfer -
Head Diameter
Between 0.357 inches and 0.373 inches -
Head Height
Between 0.122 inches and 0.133 inches -
Spline Minor Diameter
Between 0.1105 inches and 0.1205 inches -
Spline Major Diameter
Between 0.154 inches and 0.156 inches -
Locking Feature
Prevailing torque all metal design -
Grip Diameter
Between 0.1890 inches and 0.1895 inches -
Internal Drive Style
Torx -
End Application
Mv-22 aircraft -
Thread Diameter
0.190 inches -
Grip Length
Between 0.490 inches and 0.520 inches -
Thready Qty Per Inch (tpi)
32 -
Criticality Code Justification
Agav -
Part Name Assigned By Controlling Agency
Screw, pan head, close tolerance, short thread, six lobe -
Material
Iron alloy 660 -
Material Specification
Ams 5731 a286 assn standard single material response or ams5732 a286 assn standard single material response or ams 5737 a286 assn standard single material response or ams 5853 a286 assn standard single material response -
Surface Treatment
Passivate -
Surface Treatment Specification
Ams-qq-p-35, type ii or viii assn standard single treatment response -
Thread Series Designator
Unjf
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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.
Pricing and Availability
Get a quote for 5305-01-521-5145 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
BACS12HW3AU8 | The Boeing Company |
BACS12HW3AU8 | Sps Technologies, Llc |
BACS12HW3AU8 | Heartland Precision Fasteners, Inc. |
BACS12HW3AU8 | Pilgrim Screw Corporation |