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NSN 5305-01-528-2705

High Torque Screw

About this product

One hundred degree flush reduced head.

Manufacturer part number HT239-4-9 for national stock number 5305015282705.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-528-2705.

  • MPN or Model

    HT239-4-9

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.190 inches
  • Fastener Length
    Between 0.300 inches and 0.347 inches
  • Head Style
    Flush
  • Head Diameter
    Between 0.363 inches and 0.394 inches
  • Head Height
    Between 0.237 inches and 0.284 inches
  • Hole Diameter
    Between 0.076 inches and 0.081 inches
  • Grip Diameter
    0.250 inches
  • Shank Unthreaded Hole Diameter
    0.076 inches locking feature and 0.081 inches locking feature
  • Internal Drive Style
    High-torque
  • Thread Diameter
    0.190 inches
  • Grip Length
    Between 0.300 inches and 0.347 inches
  • Hole Quantity
    1
  • Hole Type
    Drilled
  • Thready Qty Per Inch (tpi)
    32
  • Hole Configuration Style
    Round
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    0.200 inches
  • Part Name Assigned By Controlling Agency
    Hi-torque bolt
  • Material
    Steel
  • Material Specification
    Mil-s-6758 military specification single material response
  • Surface Treatment
    Cadmium
  • Surface Treatment Specification
    Qq-p-416 federal specification single treatment response
  • Thread Series Designator
    Unjf
More from these suppliers
Close Tolerance Screw

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

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NSN 5305015282705

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
HT239-4-9 Hi-shear Corporation
HT239-4-9 Lisi Aerospace Canada Corp
Stock Check
Availability for this item was last checked on 06/27/22. The quantities and conditions available at the time were:
  • NE: 24