NSN 5305-01-057-0359
High Torque Screw
Between 1.301 inches and 1.331 inches fastener length, flat countersunk head style, between 0.350 inches and 0.399 inches head diameter, grip diameter: between 0.2485 inches and 0.2495 inches .
Manufacturer part number BACB30EL4-16 for national stock number 5305010570359.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-01-057-0359.
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MPN or Model
BACB30EL4-16
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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 0.291 inches and 0.341 inches -
Fastener Length
Between 1.301 inches and 1.331 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.350 inches and 0.399 inches -
Grip Diameter
Between 0.2485 inches and 0.2495 inches -
Internal Drive Style
High-torque -
Thread Diameter
0.250 inches -
Grip Length
Between 0.990 inches and 1.010 inches -
Thready Qty Per Inch (tpi)
28 -
Min. Tensile Strength (psi)
160000 pounds per square inch -
Hardness Rating
36.0 rockwell c and 40.0 rockwell c -
Countersink Angle
100.0 degrees -
Surface Finish
63.0 microinches grip -
Material
Steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740 or steel comp 4130 -
Surface Treatment
Cadmium and chromate -
Surface Treatment Specification
Qq-p-416, type 2, class 3 federal specification single treatment response -
Thread Series Designator
Unf -
Specification Data
81205-bacb30el 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.
Pricing and Availability
Get a quote for 5305-01-057-0359 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
BACB30EL4-16 | The Boeing Company |
BACB30EL4-16 | Sps Technologies, Llc |
BACB30EL4-16 | Hi-shear Corporation |
BACB30EL4-16 | Alcoa Global Fasteners, Inc. |