NSN 5305-01-337-4870
High Torque Screw
Tapped hole in head 0.138-32 unjc-3b threads. Distance from top of head to injection port 0.510 nom. Inch. Injection port 0.120 nom. In. Lg; 0.060 nom. In. Wide.
Manufacturer part number HT4075VS4-12-51 for national stock number 5305013374870.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-01-337-4870.
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MPN or Model
HT4075VS4-12-51
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Schedule B
8109.90.0000 (Zirconium and articles thereof nesoi) -
NMF (National Motor Freight)
096640 - Screws, Iron Or Steel -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
0.469 inches -
Fastener Length
Between 1.204 inches and 1.234 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.456 inches and 0.508 inches -
Grip Diameter
Between 0.2490 inches and 0.2495 inches -
Internal Drive Style
High-torque -
Thread Diameter
0.250 inches -
Grip Length
Between 0.740 inches and 0.760 inches -
Thready Qty Per Inch (tpi)
28 -
Countersink Angle
Between 99.0 degrees and 101.0 degrees -
Surface Finish
32.0 microinches bearing surface of head32.0 microinches grip32.0 microinches threads -
Part Name Assigned By Controlling Agency
Navy special project -
Material
Titanium alloy uns r56400 -
Material Specification
Ams 4928 assn standard single material response or ams 4967 assn standard single material response -
Surface Treatment
Phosphate -
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 5305-01-337-4870 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
HT4075VS4-12-51 | Huck International, Inc. |
HT4075VS4-12-51 | Arconic Global Fasteners & Rings, |
HT4075VS4-12-51 | Hi-shear Corporation |
HT4075VS4-12-51 | Lisi Aerospace Canada Corp |
HT4075VS4-12-51 | Huck Intl Inc |
HT4075VS4-12-51 | Deutsch Co The |
HT4075VS4-12-51 | Sps Technologies, Llc |
HT4075VS4-12-51 | Alcoa Global Fasteners, Inc. |
HT4075VS4-12-51 | Naval Inventory Control Point |
HT4075VS4-12-51 | Hi-shear Corporation |
Stock Check
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