C8688-1
View detailed technical data, stock status, and sourcing information for: C8688-1
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A nut, round in shape, having all or part of its outer surface knurled. It may have provisions for external wrenching. For items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. See also nut (1), plain, round. (when height or thickness, and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance).
0.430 inches minimum and 0.433 inches maximum pilot diameter, 0.177 inches minimum and 0.187 inches maximum pilot length, right-hand thread direction, 0.312 inches minimum and 0.317 inches maximum second end counterbore diameter, 2b 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
- 2b
- Thread Direction
- right-hand
- Pilot Diameter
- 0.430 inches minimum and 0.433 inches maximum
- Pilot Length
- 0.177 inches minimum and 0.187 inches maximum
- Counterbore Diameter
- 0.312 inches minimum and 0.317 inches maximum second end
- Counterbore Diameter
- 0.374 inches minimum and 0.377 inches maximum first end
- Nut Style
- clinch
- Nut Diameter
- 0.528 inches minimum and 0.534 inches maximum
- Nut Height
- 0.625 inches minimum and 0.641 inches maximum
- Nut Counterbore Depth
- 0.428 inches minimum and 0.443 inches maximum first end
- Nut Counterbore Depth
- 0.088 inches minimum and 0.098 inches maximum second end
- Thread Series
- unf
- Thread Quantity Per Inch
- 32
- Nominal Thread Size
- 0.190 inches
- Material
- steel comp 302 or steel comp 303 overall
- Material Document And Classification
- qq-s-763 fed spec 1st material response or astm a582 assn std 2nd material response or astm a276 assn std 1st material response overall
- Surface Treatment
- passivate overall
- Surface Treatment Document And Classification
- qq-p-35 fed spec 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Below is a list of NSNs that have been officially superseded by this NSN: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 |
|---|---|---|
| 3120-00-918-4708 | No Name Available | 08/01/1989 |
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 |
|---|---|
| 3020351-004 | Clinch Plain Nut |
| 42R20-M07-F09 WITH SP-2 | Clinch Plain Nut |
| 6284D-SS-1032-7 | Clinch Plain Nut |
| 6284DSS1032 | Clinch Plain Nut |
| 6284DSS1032-7 | Clinch Plain Nut |
| C8688-1 | Clinch Plain Nut |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5310-01-104-0113?
Does the NSN 5310-01-104-0113 have a Schedule B code assigned?
Does NSN 5310-01-104-0113 require demilitarization?
Does NSN 5310-01-104-0113 contain precious materials?
Does NSN 5310-01-104-0113 contain hazardous materials?
When the NSN 5310-01-104-0113 was assigned to the Federal Catalog?
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