MS51866-35
View detailed technical data, stock status, and sourcing information for: MS51866-35
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An item having two flat bearing surfaces, conforming to the same shape as the base of a nut (1), plain, plate and nut (1), self-locking, plate. It is used to provide better alignment in assembly.
0.509 inches minimum and 0.513 inches maximum pilot diameter, right-hand thread direction, prevailing torque all metal design or prevailing torque with nonmetallic insert locking feature, 0.173 inches minimum and 0.203 inches maximum pilot length, 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 or prevailing torque with nonmetallic insert
- Pilot Diameter
- 0.509 inches minimum and 0.513 inches maximum
- Pilot Length
- 0.173 inches minimum and 0.203 inches maximum
- Lubrication
- dry film lubricant
- Nut Style
- spline
- Nut Diameter
- 0.235 inches minimum and 0.265 inches maximum
- Nut Height
- 0.469 inches nominal
- Temp Rating
- 250.0 fahrenheit maximum
- Thread Series
- unf
- Thread Quantity Per Inch
- 24
- Hardness Rating
- 28.0 rockwell c maximum
- Nominal Thread Size
- 0.375 inches
- Special Features
- optional hex style,0.688 in. width across flat,optional nylon locking insert
- Material
- steel overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416,type 2 class 3 fed spec single treatment response overall
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 |
|---|---|
| MS51866-35 | Spline Self-Locking Nut |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5310-01-131-5491?
Does the NSN 5310-01-131-5491 have a Schedule B code assigned?
Does NSN 5310-01-131-5491 require demilitarization?
Does NSN 5310-01-131-5491 contain precious materials?
Does NSN 5310-01-131-5491 contain hazardous materials?
When the NSN 5310-01-131-5491 was assigned to the Federal Catalog?
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Pricing
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In Stock
This item is currently available and ready for prompt shipment. Units may be offered in various conditions — new, surplus, or refurbished — and stored at verified global facilities. Request a quote to confirm current stock and delivery time.
| New Surplus | 304 |
| New Material | 146 |
| Total | 450 |