NSN 5305-01-134-1972
High Torque Screw
Between 1.513 inches and 1.543 inches fastener length, pan no. 2 head style, between 0.477 inches and 0.492 inches head diameter, head height: between 0.140 inches and 0.150 inches .
Manufacturer part number NAS1578A4H18 for national stock number 5305011341972.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-01-134-1972.
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MPN or Model
NAS1578A4H18
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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.)
0.1 lb -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
Between 0.378 inches and 0.438 inches -
Fastener Length
Between 1.513 inches and 1.543 inches -
Head Style
Pan no. 2 -
Head Diameter
Between 0.477 inches and 0.492 inches -
Head Height
Between 0.140 inches and 0.150 inches -
Grip Diameter
Between 0.2490 inches and 0.2495 inches -
Internal Drive Style
High-torque -
Thread Diameter
0.250 inches -
Grip Length
Between 1.115 inches and 1.135 inches -
Thready Qty Per Inch (tpi)
28 -
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 e4340 or steel comp 4140 or steel comp 8740 or steel comp 6150 or steel comp 8735 -
Surface Treatment
Cadmium and chromate -
Surface Treatment Specification
Qq-p-416, ty2, cl2 federal specification single treatment response -
Thread Series Designator
Unjf -
Specification Data
80205-nas1578 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 5305-01-134-1972 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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NAS1578A4H18 | National Aerospace Standards |