NSN 5305-01-139-0850
High Torque Screw
Between 0.823 inches and 0.853 inches fastener length, flat countersunk head style, between 0.339 inches and 0.381 inches head diameter, grip diameter: between 0.1885 inches and 0.1895 inches .
Manufacturer part number HT4054-3D8A for national stock number 5305011390850.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-01-139-0850.
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MPN or Model
HT4054-3D8A
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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 0.823 inches and 0.853 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.339 inches and 0.381 inches -
Grip Diameter
Between 0.1885 inches and 0.1895 inches -
Shank Unthreaded Hole Diameter
0.070 inches first hole and 0.080 inches first hole -
Internal Drive Style
High-torque -
Thread Diameter
0.190 inches -
Grip Length
Between 0.490 inches and 0.510 inches -
Thready Qty Per Inch (tpi)
32 -
Min. Tensile Strength (psi)
180000 pounds per square inch -
Hardness Rating
39.0 rockwell c and 43.0 rockwell c -
Countersink Angle
Between 99.0 degrees and 101.0 degrees -
Distance From Head Largest Bearing Surface To Shank Hole Center
0.696 inches first hole and 0.746 inches first hole -
Surface Finish
32.0 microinches threads -
Material
Steel comp 8740 -
Material Specification
Mil-s-6049 military specification single material response -
Surface Treatment
Aluminum and chromate -
Surface Treatment Specification
Mil-c-83488 type 2 class 3 military specification 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.
![Mechanic Bill explains High Torque Screw](/public/images/billy-thinking.png)
Pricing and Availability
Get a quote for 5305-01-139-0850 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
HT4054-3D8A | Arconic Global Fasteners & Rings, |
HT4054-3D8A | Huck Intl Inc |
HT4054-3D8A | Hi-shear Corporation |
HT4054-3D8A | Sps Technologies, Llc |
HT4054-3D8A | Lisi Aerospace Canada Corp |
ST3M730-3DL8 | Boeing Company, The |
ST3M730-3DL8 | Fastener Innovation Technology, Inc. |
ST3M730-3DL8 | West Coast Aerospace Inc |
HT4054-3D8A | Sps Technologies Ltd Tj Brooks |
10115401 | Nimikkeistokeskus Ncb Finland |
ST3M730-3D8 | Boeing Company, The |
HT4054-3D8A | Alcoa Global Fasteners, Inc. |
Stock Check
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