NSN 5305-01-409-1985
High Torque Screw
Self-locking.
Manufacturer part number NAS1578A3T16L for national stock number 5305014091985.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-01-409-1985.
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MPN or Model
NAS1578A3T16L
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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 0.338 inches and 0.388 inches -
Fastener Length
Between 1.973 inches and 2.003 inches -
Head Style
Pan no. 2 -
Head Diameter
Between 0.360 inches and 0.374 inches -
Head Height
Between 0.115 inches and 0.125 inches -
Grip Diameter
Between 0.188 inches and 0.189 inches -
Internal Drive Style
Offset cruciform (torque set) -
End Application
Pacer dawn -
Thread Diameter
0.190 inches -
Grip Length
Between 1.615 inches and 1.635 inches -
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 -
Surface Finish
32.0 microinches threads -
Material
Steel comp 4340 or steel comp 4140 or steel comp 8740 -
Material Specification
Mil-s-5626 military specification 1st material response or mil-s-5000 military specification 2nd material response -
Surface Treatment
Cadmium and chromate -
Surface Treatment Specification
Qq-p-416, ty-2cl-2 federal specification single treatment response -
Thread Series Designator
Unjf
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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.
Pricing and Availability
Get a quote for 5305-01-409-1985 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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NAS1578A3T16L | National Aerospace Standards |