MS9218-12
View detailed technical data, stock status, and sourcing information for: MS9218-12
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A cylindrical item with or without flange(s), designed to be inserted in a pump casing or secured to the impeller of a centrifugal pump. It is used for the purpose of providing a close running clearance between the impeller and casing in order to prevent or overcome leakage due to erosion. It may also be used as a diffuser ring in the suction and discharge throats of valves.
0.730 inches minimum and 0.750 inches maximum thread length, 0.875 inches nominal fastener length, right-hand thread direction, double hexagon w/hole head style, 3a 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
- 3a
- Thread Direction
- right-hand
- Thread Length
- 0.730 inches minimum and 0.750 inches maximum
- Fastener Length
- 0.875 inches nominal
- Head Style
- double hexagon w/hole
- Head Height
- 0.330 inches nominal
- Width Between Flats
- 0.305 inches minimum and 0.313 inches maximum
- Extended Washer Diameter
- 0.438 inches nominal
- Extended Washer Thickness
- 0.060 inches minimum and 0.070 inches maximum
- Hole Diameter
- 0.070 inches nominal
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.125 inches minimum and 0.145 inches maximum
- Hole Quantity
- 4
- Hole Type
- drilled
- Features Provided
- finished head
- Thread Quantity Per Inch
- 28
- Minimum Tensile Strength
- 195000 pounds per square inch
- Hardness Rating
- 42.0 rockwell c minimum and 46.0 rockwell c maximum overall
- Hole Configuration Style
- hexagon longitudinal hole
- Surface Finish
- 32.0 microinches bearing surface of head
- Surface Finish
- 32.0 microinches grip
- Surface Finish
- 32.0 microinches threads
- Material
- steel comp 601 overall
- Material Document And Classification
- ams 6304 assn std single material response overall
- Surface Treatment
- cadmium overall
- Surface Treatment Document And Classification
- ams 2416 assn std single treatment response overall
- Thread Series Designator
- unjf
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 |
|---|---|
| 5306PL0625535 | Machine Bolt |
| MS9218-12 | Machine Bolt |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5306-00-947-4250?
Does the NSN 5306-00-947-4250 have a Schedule B code assigned?
Does NSN 5306-00-947-4250 require demilitarization?
Does NSN 5306-00-947-4250 contain precious materials?
Does NSN 5306-00-947-4250 contain hazardous materials?
When the NSN 5306-00-947-4250 was assigned to the Federal Catalog?
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