2644-820-85 IT 20
View detailed technical data, stock status, and sourcing information for: 2644-820-85 IT 20
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A complete, interchangeable valve including a removable seat but excluding a body. It is designed to permit flow in one direction. It is the entire operating portion of a valve that may be inserted into various body styles. The item cannot operate independently and is easily replaceable. Excludes:items furnished with a body or those designed for manifold installation.
3a thread class, right-hand thread direction, flat chamfer head style, 0.500 inches nominal fastener length, 0.500 inches nominal 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
- 0.500 inches nominal
- Fastener Length
- 0.500 inches nominal
- Head Style
- flat chamfer
- Head Diameter
- 0.550 inches minimum and 0.562 inches maximum
- Head Height
- 0.368 inches minimum and 0.375 inches maximum
- Locking Feature
- self-locking locking feature
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 0.375 inches
- Width Across Flats
- 0.312 inches nominal
- Thread Quantity Per Inch
- 16
- Minimum Tensile Strength
- 80000 pounds per square inch
- Minimum Yield Strength
- 40000 pounds per square inch
- Chamfer Angle
- 30.0 degrees minimum and 45.0 degrees maximum
- Part Name Assigned By Controlling Agency
- socket head cap screw
- Special Features
- locking feature in accordance with mil-f-8961 or mil-dtl-18240
- Material
- nickel alloy 400 fastener
- Material Document And Classification
- qq-n-281 class a, as formed or stress relieved fed spec single material response fastener
- Thread Series Designator
- unc
- Specification/Standard Data
- 81349-mil-dtl-1222j government specification
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 |
|---|---|
| 2644-820-85 IT 20 | Socket Head Cap Screw |
| 845-8616962 IT 20 | Socket Head Cap Screw |
| M1222SN6C38NALN | Socket Head Cap Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-01-725-4570?
Does the NSN 5305-01-725-4570 have a Schedule B code assigned?
Does NSN 5305-01-725-4570 require demilitarization?
Does NSN 5305-01-725-4570 contain precious materials?
Does NSN 5305-01-725-4570 contain hazardous materials?
When the NSN 5305-01-725-4570 was assigned to the Federal Catalog?
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