1-321-802-5889

NSN 5305-01-653-2127

High Torque Screw

About this product

Between 0.6605 inches and 0.6905 inches fastener length, flat countersunk head style, 0.3047 inches head diameter, grip diameter: between 0.1890 inches and 0.1895 inches .

Manufacturer part number NAS1581K3T5G for national stock number 5305016532127.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-653-2127.

  • MPN or Model

    NAS1581K3T5G

  • Schedule B
    8108.90.8000 (Other wrought titanium, nesoi)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.363 inches
  • Fastener Length
    Between 0.6605 inches and 0.6905 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    0.3047 inches
  • Grip Diameter
    Between 0.1890 inches and 0.1895 inches
  • Internal Drive Style
    Cruciform ribbed
  • Thread Diameter
    0.1900 inches
  • Grip Length
    Between 0.3025 inches and 0.3225 inches
  • Thready Qty Per Inch (tpi)
    32
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Material
    Titanium
  • Surface Treatment
    Aluminum
  • Thread Series Designator
    Unjf
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 5305016532127

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1581K3T5G National Aerospace Standards
Stock Check
Availability for this item was last checked on 09/28/23. The quantities and conditions available at the time were:
  • NE: 4488