MS21125B409
View detailed technical data, stock status, and sourcing information for: MS21125B409
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A hinge usually with rectangularly shaped leaves. The dimension parallel to the hinge pin must be greater than the dimension transverse to the hinge pin. It may have a tension coil spring at its pivot(s) for closing action, and may have a third member between its pivot(s) to permit the door, or the like, to swing in an arc from either side.
flat chamfer head style, 0.981 inches minimum and 1.001 inches maximum fastener length, right-hand thread direction, 3a thread class, 0.278 inches minimum and 0.329 inches maximum thread length
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
- 0.278 inches minimum and 0.329 inches maximum
- Fastener Length
- 0.981 inches minimum and 1.001 inches maximum
- Head Style
- flat chamfer
- Head Diameter
- 0.477 inches minimum and 0.492 inches maximum
- Head Height
- 0.126 inches minimum and 0.141 inches maximum
- Locking Feature
- detent ball grip
- Grip Diameter
- 0.2487 inches minimum and 0.2492 inches maximum
- Shank Unthreaded Hole Diameter
- 0.076 inches minimum and 0.086 inches maximum first hole
- Internal Drive Style
- slot
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.562 inches minimum and 0.578 inches maximum
- Thread Quantity Per Inch
- 28
- Minimum Tensile Strength
- 63000 pounds per square inch
- Distance From Head Largest Bearing Surface To Shank Hole Center
- 0.885 inches minimum and 0.905 inches maximum first hole
- Surface Finish
- 32.0 microinches bearing surface of head
- Surface Finish
- 32.0 microinches grip
- Material
- steel comp 631 or steel comp 302 spring
- Material
- steel comp 632 fastener
- Material Document And Classification
- astm a580 cond. a assn std single material response spring
- Surface Treatment
- passivate overall
- Surface Treatment Document And Classification
- qq-p-35 fed spec single treatment response overall
- Thread Series Designator
- unjf
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5305-00-092-6698 | No Name Available | 11/01/1989 |
| 5305-00-253-5273 | No Name Available | 12/01/1988 |
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 |
|---|---|
| 5305PL0783964 | Close Tolerance Screw |
| AS255B4-09 | Close Tolerance Screw |
| MS21125B409 | Close Tolerance Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-01-191-4494?
Does the NSN 5305-01-191-4494 have a Schedule B code assigned?
Does NSN 5305-01-191-4494 require demilitarization?
Does NSN 5305-01-191-4494 contain precious materials?
Does NSN 5305-01-191-4494 contain hazardous materials?
When the NSN 5305-01-191-4494 was assigned to the Federal Catalog?
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Pricing
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