863989
View detailed technical data, stock status, and sourcing information for: 863989
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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.
0.672 inches minimum and 0.703 inches maximum outside diameter, 0.390 inches minimum and 0.395 inches maximum hole diameter, 0.141 inches minimum and 0.172 inches maximum external straight key length, 0.203 inches minimum and 0.234 inches maximum external prebent key length, 0.182 inches minimum and 0.192 inches maximum external straight key width
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Hole Diameter
- 0.390 inches minimum and 0.395 inches maximum
- Outside Diameter
- 0.672 inches minimum and 0.703 inches maximum
- External Straight Key Length
- 0.141 inches minimum and 0.172 inches maximum
- External Prebent Key Length
- 0.203 inches minimum and 0.234 inches maximum
- External Straight Key Width
- 0.182 inches minimum and 0.192 inches maximum
- Overall Distance Including Keys
- 0.797 inches minimum and 0.828 inches maximum
- Material Thickness
- 0.047 inches minimum and 0.078 inches maximum
- Hardness Rating
- 52.0 rockwell b minimum or 64.0 rockwell b maximum
- Material
- steel comp 1008 overall
- Material Document And Classification
- aisi assn std single material response overall
- Surface Treatment
- cadmium overall
- Style Designator
- key
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5310-00-209-2558 | No Name Available | 12/22/1969 |
| 5310-00-282-0483 | No Name Available | 07/10/1970 |
| 5310-00-637-9733 | No Name Available | 02/16/1970 |
| 5310-00-639-2137 | No Name Available | 12/22/1969 |
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| 851892 | Key Washer |
| 863989 | Key Washer |
| B11379 | Key Washer |
| F3073 | Key Washer |
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| RC4228 | Key Washer |
| T8702 | Key Washer |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5310-00-358-8344?
Does the NSN 5310-00-358-8344 have a Schedule B code assigned?
Does NSN 5310-00-358-8344 require demilitarization?
Does NSN 5310-00-358-8344 contain precious materials?
Does NSN 5310-00-358-8344 contain hazardous materials?
When the NSN 5310-00-358-8344 was assigned to the Federal Catalog?
Professional Distribution
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Pricing
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