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NSN 5305-01-392-2599

High Torque Screw

About this product

Between 1.233 inches and 1.263 inches fastener length, flat countersunk head style, between 0.447 inches and 0.507 inches head diameter, grip diameter: between 0.2485 inches and 0.2495 inches .

Manufacturer part number PBF1570-4-12L for national stock number 5305013922599.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-392-2599.

  • MPN or Model

    PBF1570-4-12L

  • Schedule B
    8105.90.0000 (Cobalt, wrought, and articles thereof)
  • 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
    0.498 inches
  • Fastener Length
    Between 1.233 inches and 1.263 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.447 inches and 0.507 inches
  • Grip Diameter
    Between 0.2485 inches and 0.2495 inches
  • Single Shear Strength
    132000 pounds per square inch
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.250 inches
  • Grip Length
    0.750 inches
  • Features Provided
    Dry film lubricant
  • Thready Qty Per Inch (tpi)
    28
  • Min. Tensile Strength (psi)
    240000 pounds per square inch
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Material
    Cobalt comp mp-35-n
  • Material Specification
    Ams 5844 assn standard single material response
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Qq-p-35 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 5305013922599

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
PBF1570-4-12L Sps Technologies, Llc
125300-4-12L Sps Technologies, Llc
HR257-4-12L Hi-shear Corporation
03A415-4-12L Northrop Grumman Systems Corporation
HR257-4-12L Lisi Aerospace Canada Corp
Stock Check
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