NSN 5305-00-864-4977
High Torque Screw
Between 2.703 inches and 2.750 inches fastener length, flat countersunk head style, between 0.625 inches and 0.645 inches head diameter, grip diameter: between 0.3108 inches and 0.3117 inches .
Manufacturer part number NAS335CPA25 for national stock number 5305008644977.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-00-864-4977.
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MPN or Model
NAS335CPA25
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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) -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
Between 0.432 inches and 0.562 inches -
Fastener Length
Between 2.703 inches and 2.750 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.625 inches and 0.645 inches -
Grip Diameter
Between 0.3108 inches and 0.3117 inches -
Internal Drive Style
Cross recess type 1 -
Thread Diameter
0.312 inches -
Grip Length
Between 2.178 inches and 2.198 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 grip -
Material
Steel comp e4340 or steel comp 8740 or steel comp 8735 or steel comp 6150 or steel comp 4140 or steel comp 4037 -
Material Specification
Mil-s-5000 military specification 1st material response or mil-s-6049 military specification 2nd material response or mil-s-6098 military specification 3rd material response or mil-s-8503 military specification 4th material response or mil-s-5626 military specification 5th material response or ams 6300 assn standard 6th material response -
Surface Treatment
Cadmium and chromate -
Surface Treatment Specification
00-p-416 type 2 cl 3 federal specification all treatment responses -
Thread Series Designator
Unf -
Specification Data
80205-nas335 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.
![Mechanic Bill explains High Torque Screw](/public/images/billy-thinking.png)
Pricing and Availability
Get a quote for 5305-00-864-4977 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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NAS335CPA25 | National Aerospace Standards |
Stock Check
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