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NSN 5305-01-197-3995

High Torque Screw

About this product

Between 1.310 inches and 1.330 inches fastener length, flat chamfer head style, between 0.360 inches and 0.374 inches head diameter, head height: between 0.095 inches and 0.110 inches .

Manufacturer part number MS21125B315 for national stock number 5305011973995.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-197-3995.

  • MPN or Model

    MS21125B315

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • NMF (National Motor Freight)
    093486 - Bolts, Nuts Or Screws, NOI (sub 3)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.262 inches and 0.313 inches
  • Fastener Length
    Between 1.310 inches and 1.330 inches
  • Head Style
    Flat chamfer
  • Head Diameter
    Between 0.360 inches and 0.374 inches
  • Head Height
    Between 0.095 inches and 0.110 inches
  • Locking Feature
    Detent ball grip
  • Grip Diameter
    Between 0.1889 inches and 0.1894 inches
  • Shank Unthreaded Hole Diameter
    0.070 inches first hole and 0.080 inches first hole
  • Internal Drive Style
    Slot
  • Thread Diameter
    0.190 inches
  • Grip Length
    Between 0.938 inches and 0.954 inches
  • Thready Qty Per Inch (tpi)
    32
  • Min. Tensile Strength (psi)
    63000 pounds per square inch
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    1.221 inches first hole and 1.241 inches first hole
  • Surface Finish
    32.0 microinches grip
  • Part Name Assigned By Controlling Agency
    Navy special project
  • Material
    Steel comp 632 fastener
  • Material Specification
    Astm a580 cond. A assn standard single material response spring
  • 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 5305011973995

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
MS21125B315 National Aerospace Standards
CA2651-3-15 Arconic Global Fasteners & Rings,
MS21125-315 National Aerospace Standards
MS21125-315 Military Standards
MS21125B315 Military Standards
MIL-B-23964D Military Specifications
Stock Check
Availability for this item was last checked on 06/29/23. The quantities and conditions available at the time were:
  • NS: 4