NSN 5305-00-143-1974
High Torque Screw
Between 1.048 inches and 1.078 inches fastener length, flat countersunk head style, between 0.572 inches and 0.638 inches head diameter, grip diameter: between 0.3095 inches and 0.3120 inches .
Manufacturer part number NAS1625-11 for national stock number 5305001431974.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-00-143-1974.
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MPN or Model
NAS1625-11
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Schedule B
7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment) -
NMF (National Motor Freight)
093486 - Bolts, Nuts Or Screws, NOI (sub 3) -
Unit Weight (Est.)
2.6 lb -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
Between 0.350 inches and 0.400 inches -
Fastener Length
Between 1.048 inches and 1.078 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.572 inches and 0.638 inches -
Grip Diameter
Between 0.3095 inches and 0.3120 inches -
Internal Drive Style
Offset cruciform (torque set) -
Thread Diameter
0.312 inches -
Grip Length
Between 0.678 inches and 0.698 inches -
Thready Qty Per Inch (tpi)
24 -
Min. Tensile Strength (psi)
160000 pounds per square inch -
Hardness Rating
36.0 rockwell c and 40.0 rockwell c -
Countersink Angle
Between 99.0 degrees and 101.0 degrees -
Surface Finish
32.0 microinches threads -
Material
Steel -
Material Specification
Ams6300 assn standard single material response -
Surface Treatment
Cadmium and chromate -
Surface Treatment Specification
Qq-p-416, ty2, cl 2 federal specification single treatment response -
Thread Series Designator
Unf
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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.
![Mechanic Bill explains High Torque Screw](/public/images/billy-thinking.png)
Pricing and Availability
Get a quote for 5305-00-143-1974 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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NAS1625-11 | National Aerospace Standards |
Stock Check
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