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NSN 5305-01-272-9977

High Torque Screw

About this product

Between 1.049 inches and 1.096 inches fastener length, flat countersunk head style, between 0.464 inches and 0.507 inches head diameter, grip diameter: between 0.2485 inches and 0.2495 inches .

Manufacturer part number HR203-4-11D for national stock number 5305012729977.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-272-9977.

  • MPN or Model

    HR203-4-11D

  • 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 0.351 inches and 0.418 inches
  • Fastener Length
    Between 1.049 inches and 1.096 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.464 inches and 0.507 inches
  • Grip Diameter
    Between 0.2485 inches and 0.2495 inches
  • Shank Unthreaded Hole Diameter
    0.071 inches first hole and 0.081 inches first hole
  • Internal Drive Style
    Torque-set ribbed
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 0.678 inches and 0.698 inches
  • Thready Qty Per Inch (tpi)
    28
  • Min. Tensile Strength (psi)
    156000 pounds per square inch
  • Hardness Rating
    51.0 rockwell c and 54.0 rockwell c
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    0.881 inches first hole and 0.913 inches first hole
  • Surface Finish
    32.0 microinches threads
  • Part Name Assigned By Controlling Agency
    Navy special project
  • Material
    Steel comp h11
  • Material Specification
    Ams 6487 assn standard single material response
  • Surface Treatment
    Cadmium and chromate
  • Surface Treatment Specification
    Mil-c-8837 type 2 class 2 military 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 5305012729977

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
HR203-4-11D Hi-shear Corporation
HR203-4-11D Lisi Aerospace Canada Corp
GB510DE4-11D Northrop Grumman Systems Corporation
SCD1780-4-11D Arconic Global Fasteners & Rings,
PBF1360-4-11D Sps Technologies, Llc
122995D-4-11D Sps Technologies, Llc
HR203-4-11D Naval Inventory Control Point
HR203-4-11D Hi-shear Corporation
HR203-4-11D Naval Inventory Control Point
HR203-4-11D Hi-shear Corporation
HR203-4-11D Naval Inventory Control Point
HR203-4-11D Hi-shear Corporation
HR203-4-11D Naval Inventory Control Point
HR203-4-11D Hi-shear Corporation
HR203-4-11D Naval Inventory Control Point
HR203-4-11D Hi-shear Corporation
HR203-4-11D Naval Inventory Control Point
HR203-4-11D Hi-shear Corporation
HR203-4-11D Naval Inventory Control Point
HR203-4-11D Hi-shear Corporation
HR203-4-11D Naval Inventory Control Point
HR203-4-11D Hi-shear Corporation
HR203-4-11D Naval Inventory Control Point
HR203-4-11D Hi-shear Corporation
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