NSN 5305-01-492-0393
High Torque Screw
1.594 inches fastener length, flat countersunk head style, between 0.625 inches and 0.635 inches head diameter, grip diameter: between 0.3110 inches and 0.3120 inches .
Manufacturer part number NAS1975-18T for national stock number 5305014920393.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-01-492-0393.
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MPN or Model
NAS1975-18T
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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.)
1 lb -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
0.469 inches -
Fastener Length
1.594 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.625 inches and 0.635 inches -
Grip Diameter
Between 0.3110 inches and 0.3120 inches -
Internal Drive Style
Offset cruciform (torque set) -
End Application
C-135 aircraft -
Thread Diameter
0.312 inches -
Grip Length
Between 1.115 inches and 1.135 inches -
Thready Qty Per Inch (tpi)
24 -
Hardness Rating
39.0 rockwell c and 43.0 rockwell c -
Countersink Angle
Between 99.0 degrees and 101.0 degrees -
Material
Steel comp 4140 or steel comp 4340 or steel comp 8740 -
Material Specification
Mil-s-5626 military specification 1st material response or mil-s-5000 military specification 2nd material response or mil-s-6049 military specification 2nd material response -
Surface Treatment
Cadmium -
Surface Treatment Specification
Qq-p-416, ty ii, cl 2 federal specification single treatment response -
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 5305-01-492-0393 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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NAS1975-18T | National Aerospace Standards |