NSN 5305-01-438-8279
High Torque Screw
Between 2.753 inches and 2.783 inches fastener length, flat countersunk head style, 1.014 inches head diameter, grip diameter: between 0.4985 inches and 0.4995 inches .
Manufacturer part number NAS1580A8H32 for national stock number 5305014388279.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-01-438-8279.
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MPN or Model
NAS1580A8H32
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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 0.743 inches and 0.793 inches -
Fastener Length
Between 2.753 inches and 2.783 inches -
Head Style
Flat countersunk -
Head Diameter
1.014 inches -
Grip Diameter
Between 0.4985 inches and 0.4995 inches -
Internal Drive Style
High-torque -
Thread Diameter
0.500 inches -
Grip Length
Between 1.990 inches and 2.010 inches -
Thready Qty Per Inch (tpi)
20 -
Countersink Angle
Between 99.0 degrees and 101.0 degrees -
Material
Steel comp 4140 or steel comp e4340 or steel comp 8740 -
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 5305-01-438-8279 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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NAS1580A8H32 | National Aerospace Standards |