NSN 5305-01-460-8253
High Torque Screw
Between 2.326 inches and 2.356 inches fastener length, flat countersunk head style, between 0.464 inches and 0.506 inches head diameter, grip diameter: between 0.2485 inches and 0.2495 inches .
Manufacturer part number NAS1580A4R31D for national stock number 5305014608253.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-01-460-8253.
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MPN or Model
NAS1580A4R31D
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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
0.403 inches -
Fastener Length
Between 2.326 inches and 2.356 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.464 inches and 0.506 inches -
Grip Diameter
Between 0.2485 inches and 0.2495 inches -
Shank Unthreaded Hole Diameter
0.076 inches first hole and 0.086 inches first hole -
Internal Drive Style
Offset cruciform (torque set) -
Thread Diameter
0.250 inches -
Grip Length
Between 1.928 inches and 1.948 inches -
Thready Qty Per Inch (tpi)
28 -
Min. Tensile Strength (psi)
160000 pounds per square inch -
Countersink Angle
Between 99.0 degrees and 101.0 degrees -
Distance From Head Largest Bearing Surface To Shank Hole Center
2.262 inches first hole and 2.312 inches first hole -
Material
Steel comp 4140 and steel comp e4340 and steel comp 8740 -
Material Specification
Mil-s-5626 military specification single material response and mil-s-5000 military specification single material response and mil-s-6049 military specification single material response -
Surface Treatment
Cadmium -
Surface Treatment Specification
Qq-p-416 ty ii cl 2 federal specification single treatment response -
Thread Series Designator
Unjf -
Specification Data
80205-nas1580 professional/industrial association standard
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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 5305-01-460-8253 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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NAS1580A4R31D | National Aerospace Standards |