NSN 5305-00-763-0412
High Torque Screw
Between 0.448 inches and 0.478 inches fastener length, flat countersunk head style, between 0.258 inches and 0.305 inches head diameter, grip diameter: between 0.1885 inches and 0.1895 inches .
Manufacturer part number BACB30FB3-2 for national stock number 5305007630412.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-00-763-0412.
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MPN or Model
BACB30FB3-2
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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)
093486 - Bolts, Nuts Or Screws, NOI (sub 3) -
Unit Weight (Est.)
0.1 lb -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
Between 0.313 inches and 0.363 inches -
Fastener Length
Between 0.448 inches and 0.478 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.258 inches and 0.305 inches -
Grip Diameter
Between 0.1885 inches and 0.1895 inches -
Internal Drive Style
High-torque -
Thread Diameter
0.190 inches -
Grip Length
Between 0.115 inches and 0.135 inches -
Thready Qty Per Inch (tpi)
32 -
Min. Tensile Strength (psi)
160000 pounds per square inch -
Hardness Rating
36.0 rockwell c and 40.0 rockwell c -
Countersink Angle
Between 99.0 degrees and 101.0 degrees -
Surface Finish
32.0 microinches threads -
Material
Steel comp e4340 or steel comp 4340 or steel comp 8740 -
Surface Treatment
Cadmium -
Surface Treatment Specification
Qq-p-416, type 1, cl 3 federal specification single treatment response -
Thread Series Designator
Unf -
Specification Data
81205-bacb30fb manufacturers standard
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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.
![Mechanic Bill explains High Torque Screw](/public/images/billy-thinking.png)
Pricing and Availability
Get a quote for 5305-00-763-0412 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
BACB30FB3-2 | Boeing Company, The |
BACB30FB3-2 | National Aerospace Standards |
BACB30FB3-2 | The Boeing Company |
Stock Check
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