DAS4-20B
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A cylindrical item in which the inner or outer ring turns upon row(s) of hardened roller, bearing which roll on a raceway, thus minimizing friction. These items are characterized by their noncorrosive qualities, lightness of weight, inch dimensions rather than metric, inner rings generally projecting beyond the faces of the outer ring, or a very narrow width inner ring having an outside diameter slightly larger than the bore diameter. Designed primarily for use in aircraft assemblies, such as control systems and surfaces of aircraft. Excludes:bearing,roller,cylindrical.
0.7500 inches nominal outer ring width, 1.2500 inches nominal overall outside diameter, cast retainer fabrication method, 0.2500 inches nominal bore diameter, 1.1250 inches nominal inner ring width
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Bore Diameter
- 0.2500 inches nominal
- Overall Outside Diameter
- 1.2500 inches nominal
- Outer Ring Width
- 0.7500 inches nominal
- Inner Ring Width
- 1.1250 inches nominal
- Retainer Fabrication Method
- cast
- Seal Quantity
- 2
- Shield Quantity
- 2
- Bearing Seal Type
- contact
- Special Features
- 10 deg self alignment in either direction,lubricant hole and groove in outer ring,heat treated sleeve and collars on inner ring
- Lubrication Material
- grease
- Lubrication Material Document And Classification
- mil-g-23827 mil spec single material response
- Surface Treatment
- cadmium all external/exposed metal surfaces
- Style Designator
- concave rollers, double closure, self aligning
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 3110-00-143-3008 | No Name Available | 09/09/1973 |
| 3110-00-183-9790 | No Name Available | 09/17/1969 |
| 3110-00-198-1162 | No Name Available | 11/07/1969 |
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:
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 3110-00-143-3016?
Does the NSN 3110-00-143-3016 have a Schedule B code assigned?
Does NSN 3110-00-143-3016 require demilitarization?
Does NSN 3110-00-143-3016 contain precious materials?
Does NSN 3110-00-143-3016 contain hazardous materials?
When the NSN 3110-00-143-3016 was assigned to the Federal Catalog?
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