NSN 5305-01-572-3265
High Torque Screw
Internal drive ribbed.
Manufacturer part number NAS1581C4R4P for national stock number 5305015723265.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-01-572-3265.
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MPN or Model
NAS1581C4R4P
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Schedule B
7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment) -
Thread Direction
Right-hand -
Thread Length
Between 0.378 inches and 0.428 inches -
Fastener Length
Between 0.638 inches and 0.668 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.3504 inches and 0.3988 inches -
Grip Diameter
Between 0.2485 inches and 0.2495 inches -
Internal Drive Style
Offset cruciform (torque set) -
Thread Diameter
0.250 inches -
Grip Length
Between 0.240 inches and 0.260 inches -
Nonstandard Thread Pitch Diameter
+0.2157/+0.2195 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 -
Surface Finish
32.0 microinches threads -
Material
Iron alloy 660 -
Material Specification
Ams 5731 assn standard single material response or ams 5732 assn standard single material response or ams 4737 assn standard single material response -
Surface Treatment
Cadmium -
Thread Series Designator
Unjf -
Specification Data
80205-nas1581 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 5305-01-572-3265 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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NAS1581C4R4P | National Aerospace Standards |