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NSN 5305-01-561-6375

High Torque Screw

About this product

1.078 inches fastener length, flat countersunk head style, between 0.704 inches and 0.762 inches head diameter, grip diameter: between 0.3735 inches and 0.3745 inches .

Manufacturer part number NAS1976-8T for national stock number 5305015616375.

Picture of NSN 5305-01-561-6375

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-561-6375.

  • MPN or Model

    NAS1976-8T

  • 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
    Between 0.553 inches and 0.603 inches
  • Fastener Length
    1.078 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.704 inches and 0.762 inches
  • Grip Diameter
    Between 0.3735 inches and 0.3745 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • End Application
    C-130 aircraft
  • Thread Diameter
    0.375 inches
  • Grip Length
    0.500 inches
  • Thready Qty Per Inch (tpi)
    24
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Material
    Steel comp 4140
  • Thread Series Designator
    Unjf
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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 5305015616375

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1976-8T National Aerospace Standards
Stock Check
Availability for this item was last checked on 08/26/22. The quantities and conditions available at the time were:
  • NE: 322
  • NS: 9