NSN 5305-01-494-8431
High Torque Screw
Furnished with one oring.
Manufacturer part number HT4020-6-20 for national stock number 5305014948431.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-01-494-8431.
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MPN or Model
HT4020-6-20
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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
Between 0.625 inches and 0.672 inches -
Fastener Length
Between 1.297 inches and 1.932 inches -
Head Style
Flat countersunk undercut -
Head Diameter
Between 0.7556 inches and 0.7604 inches -
Head Height
Between 0.1147 inches and 0.1167 inches -
Grip Diameter
Between 0.3740 inches and 0.3745 inches -
Internal Drive Style
High-torque -
Thread Diameter
0.3750 inches -
Grip Length
Between 1.240 inches and 1.260 inches -
Thready Qty Per Inch (tpi)
24 -
Countersink Angle
Between 99.0 degrees and 101.0 degrees -
Part Name Assigned By Controlling Agency
Navy special project -
Material
Steel comp xm-13 -
Material Specification
Ams5629 assn standard single material response -
Surface Treatment
Passivate -
Surface Treatment Specification
Qq-p-35 federal 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 5305-01-494-8431 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
HT4020-6-20 | Sps Technologies, Llc |
HT4020-6-20 | Alcoa Global Fasteners, Inc. |
HT4020-6-20 | Hi-shear Corporation |
HT4020-6-20 | Sps Technologies Ltd Tj Brooks |
HT4020-6-20 | Lisi Aerospace Canada Corp |
ST3M652C6-20D | Boeing Company, The |
ST3M652C6-20D | Arconic Global Fasteners & Rings, |
HT4020-6-20 | Huck International, Inc. |
ST3M652C6-20D | Fastener Innovation Technology, Inc. |
ST3M652C6-20D | West Coast Aerospace Inc |
HT4020-6-20 | Huck Intl Inc |
HT4020-6-20 | Sps Technologies Inc |
Stock Check
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