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NSN 5305-00-914-9221

High Torque Screw

About this product

Between 0.323 inches and 0.353 inches fastener length, flat chamfer head style, between 0.211 inches and 0.226 inches head diameter, head height: between 0.074 inches and 0.086 inches .

Manufacturer part number NAS1121-1H for national stock number 5305009149221.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-00-914-9221.

  • MPN or Model

    NAS1121-1H

  • 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
    0.276 inches
  • Fastener Length
    Between 0.323 inches and 0.353 inches
  • Head Style
    Flat chamfer
  • Head Diameter
    Between 0.211 inches and 0.226 inches
  • Head Height
    Between 0.074 inches and 0.086 inches
  • Hole Diameter
    0.038 inches
  • Grip Diameter
    Between 0.1365 inches and 0.1375 inches
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.138 inches
  • Grip Length
    0.062 inches
  • Hole Quantity
    2
  • Hole Type
    Drilled
  • Thready Qty Per Inch (tpi)
    32
  • Min. Tensile Strength (psi)
    160000 pounds per square inch
  • Hardness Rating
    36.0 rockwell c and 40.0 rockwell c
  • Hole Configuration Style
    Round
  • Surface Finish
    32.0 microinches threads
  • Material
    Steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740
  • Material Specification
    Mil-s-5626 military specification 1st material response or mil-s-5000 military specification 2nd material response or mil-s-8503 military specification 3rd material response or mil-s-6098 military specification 4th material response or mil-s-6049 military specification 5th material response
  • Surface Treatment
    Cadmium and chromate
  • Surface Treatment Specification
    Qq-p-416, type 2, cl 3 federal specification all treatment responses
  • Thread Series Designator
    Unjc
  • Specification Data
    80205-nas1121 professional/industrial association standard
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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

Pricing and Availability

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NSN 5305009149221

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1121-1H National Aerospace Standards
Stock Check
Availability for this item was last checked on 11/22/23. The quantities and conditions available at the time were:
  • NS: 120
  • NE: 609