NAS587-17
View detailed technical data, stock status, and sourcing information for: NAS587-17
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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.
3a thread class, 1.703 inches minimum and 1.750 inches maximum fastener length, flat countersunk head style, 0.656 inches minimum thread length, right-hand thread direction
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Thread Class
- 3a
- Thread Direction
- right-hand
- Thread Length
- 0.656 inches minimum
- Fastener Length
- 1.703 inches minimum and 1.750 inches maximum
- Head Style
- flat countersunk
- Head Diameter
- 0.884 inches minimum and 0.888 inches maximum
- Grip Diameter
- 0.4360 inches minimum and 0.4370 inches maximum
- Internal Drive Style
- high-torque
- Nominal Thread Diameter
- 0.437 inches
- Grip Length
- 1.062 inches nominal
- Thread Quantity Per Inch
- 20
- Minimum Tensile Strength
- 160000 pounds per square inch
- Hardness Rating
- 36.0 rockwell c minimum and 40.0 rockwell c maximum overall
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Surface Finish
- 32.0 microinches grip
- Surface Finish
- 32.0 microinches threads
- Material
- steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740 overall
- Material Document And Classification
- mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-8503 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-6049 mil spec 5th material response overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416,type 2 class 3 fed spec all treatment responses overall
- Thread Series Designator
- unf
- Specification/Standard Data
- 80205-nas-587 professional/industrial association standard
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5305-00-638-9713 | No Name Available | 04/14/1969 |
Related Parts
This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:
| Part Number | Name |
|---|---|
| NAS587-17 | Close Tolerance Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-00-059-7042?
Does the NSN 5305-00-059-7042 have a Schedule B code assigned?
Does NSN 5305-00-059-7042 require demilitarization?
Does NSN 5305-00-059-7042 contain precious materials?
Does NSN 5305-00-059-7042 contain hazardous materials?
When the NSN 5305-00-059-7042 was assigned to the Federal Catalog?
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