MS21316-25
View detailed technical data, stock status, and sourcing information for: MS21316-25
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An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, splined or smoothed, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use screw (as modified) or bolt (as modified).
0.750 inches nominal fastener length, thumb no. 3 head style, 0.468 inches nominal head height, 0.667 inches minimum thread length, 2a 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
- 2a
- Thread Length
- 0.667 inches minimum
- Fastener Length
- 0.750 inches nominal
- Head Style
- thumb no. 3
- Head Height
- 0.468 inches nominal
- Width Between Flats
- 0.410 inches nominal
- Shoulder Diameter
- 0.335 inches nominal first shoulder
- Point Style
- flat
- Nominal Thread Diameter
- 0.190 inches
- Thread Quantity Per Inch
- 24
- Shoulder Shape
- round first shoulder
- Material
- steel overall
- Surface Treatment
- cadmium or zinc overall
- Thread Series Designator
- unc
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5305-00-975-2070 | No Name Available | 06/01/1996 |
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 |
|---|---|
| MS21316-25 | Thumbscrew |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-00-059-4092?
Does the NSN 5305-00-059-4092 have a Schedule B code assigned?
Does NSN 5305-00-059-4092 require demilitarization?
Does NSN 5305-00-059-4092 contain precious materials?
Does NSN 5305-00-059-4092 contain hazardous materials?
When the NSN 5305-00-059-4092 was assigned to the Federal Catalog?
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Pricing
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