MS20500-720A
View detailed technical data, stock status, and sourcing information for: MS20500-720A
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A washer or cone or disk shape with a centrally located hole, designed to accommodate a flat or oval head screw and provide additional bearing area on the material being fastened. It may or may not have a flush flange feature.
hexagon nut style, 0.421 inches minimum and 0.469 inches maximum nut height, prevailing torque all metal design locking feature, right-hand thread direction, 3b thread class
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Thread Class
- 3b
- Thread Direction
- right-hand
- Locking Feature
- prevailing torque all metal design
- Nut Style
- hexagon
- Nut Height
- 0.421 inches minimum and 0.469 inches maximum
- Width Across Flats
- 0.679 inches minimum and 0.690 inches maximum
- Temp Rating
- 1200.0 fahrenheit nominal
- Thread Series
- unjf
- Thread Quantity Per Inch
- 20
- Nominal Thread Size
- 0.438 inches
- Countersink Angle
- 88.0 degrees nominal nut
- Bearing Surface Type
- chamfered
- Bearing Surface Finish
- 125.0 microinches
- Material
- steel uns s34720 or steel uns s34723 overall
- Material Document And Classification
- ams 5642 s34720/s34723 assn std single material response overall
- Precious Material And Location
- all surfaces silver
- Precious Material
- silver
- Surface Treatment
- silver overall
- Surface Treatment Document And Classification
- ams 2410 assn std single treatment response overall
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5310-00-298-2748 | No Name Available | 04/01/1984 |
| 5310-00-596-5811 | No Name Available | 02/01/1983 |
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 |
|---|---|
| 1802-070U | Hexagon Self-Locking Nut |
| 5310002982748 | Hexagon Self-Locking Nut |
| MS20500-720A | Hexagon Self-Locking Nut |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5310-00-493-4020?
Does the NSN 5310-00-493-4020 have a Schedule B code assigned?
Does NSN 5310-00-493-4020 require demilitarization?
Does NSN 5310-00-493-4020 contain precious materials?
Does NSN 5310-00-493-4020 contain hazardous materials?
When the NSN 5310-00-493-4020 was assigned to the Federal Catalog?
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Pricing
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