MS21250-04005
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An item of any peripheral shape having flanges or groove(s) on its outer perimeter to provide a self-retaining characteristic when inserted in a hole, clamp, or the like. Designed for the purpose of protecting and/or insulating wires, cables and other items passing through it. Excludes:bushing, nonmetallic; bumper; and insulator bushing.
0.492 inches minimum thread length, 0.8045 inches nominal fastener length, right-hand thread direction, double hexagon extended washer 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
- 0.492 inches minimum
- Fastener Length
- 0.8045 inches nominal
- Head Style
- double hexagon extended washer
- Head Height
- 0.300 inches nominal
- Width Between Flats
- 0.3125 inches nominal
- Extended Washer Diameter
- 0.428 inches minimum and 0.438 inches maximum
- Extended Washer Thickness
- 0.069 inches nominal
- Grip Diameter
- 0.2485 inches minimum and 0.2495 inches maximum
- Nominal Thread Diameter
- 0.2500 inches
- Grip Length
- 0.3025 inches minimum and 0.3225 inches maximum
- Thread Quantity Per Inch
- 28
- Minimum Tensile Strength
- 180000 pounds per square inch
- Hardness Rating
- 39.0 rockwell c minimum and 43.0 rockwell c maximum overall
- Surface Finish
- 125.0 microinches grip
- Surface Finish
- 125.0 microinches threads
- Surface Finish
- 32.0 microinches bearing surface of head
- Part Name Assigned By Controlling Agency
- bolt,tension,steel,external wrenching,flanged,12-point,180 ksi ftu,450 degree
- Special Features
- maximum tensile strength is 200,000 psi
- Material
- steel comp 4140 or steel comp 4340 or steel comp 8740 or steel comp 6150 overall
- Material Document And Classification
- mil-s-5826(aisi 4140) government std/spec 1st material response or mil-s-5000(aisi 4340) government std/spec 2nd material response or mil-s-6049(aisi 8740) government std/spec 3rd material response or mil-s-8503(aisi 6150) government std/spec 4th material response overall
- Surface Treatment
- cadmium overall
- Surface Treatment Document And Classification
- qq-p-416,type ii,class 2 national std single treatment response overall
- Thread Series Designator
- unjf
- Specification/Standard Data
- 80205-nas-21250 professional/industrial association standard
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 |
|---|---|
| MS21250-04005 | Shear Bolt |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5306-01-643-2336?
Does the NSN 5306-01-643-2336 have a Schedule B code assigned?
Does NSN 5306-01-643-2336 require demilitarization?
Does NSN 5306-01-643-2336 contain precious materials?
Does NSN 5306-01-643-2336 contain hazardous materials?
When the NSN 5306-01-643-2336 was assigned to the Federal Catalog?
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