21TD687
View detailed technical data, stock status, and sourcing information for: 21TD687
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A cylindrical device in which the inner cone or outer cup turns upon a single or double row of tapered hardened rollers which roll easily in a race, thus minimizing friction and designed to carry a radial load and capable of sustaining axial thrust. Excludes:bearing,roller,thrust.
3.9370 inches nominal overall outside diameter, 0.1250 inches nominal standout width, 0.8268 inches nominal overall width, 0.0780 inches nominal backface corner radius, 2.1653 inches nominal bore diameter
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Overall Width
- 0.8268 inches nominal
- Bore Diameter
- 2.1653 inches nominal
- Overall Outside Diameter
- 3.9370 inches nominal
- Backface Corner Radius
- 0.0780 inches nominal
- Standout Width
- 0.1250 inches nominal
- Cone Corner Radius
- 0.0930 inches nominal
- Cone Width
- 0.8640 inches nominal
- Cup Width
- 0.7018 inches nominal
- Standard Tolerance Designation
- afbma class 2
- Material
- steel overall
- Style Designator
- straight bore, normal angle
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 3110-00-100-0303 | No Name Available | 01/01/2009 |
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 |
|---|---|
| 21TD687 | Tapered Roller Bearing |
| 3110001000303 | Tapered Roller Bearing |
| 383A385 | Tapered Roller Bearing |
| 385-383A | Tapered Roller Bearing |
| 431750 | Tapered Roller Bearing |
| 602178 | Tapered Roller Bearing |
| 64AX115 | Tapered Roller Bearing |
| 703234 | Tapered Roller Bearing |
| 706650 | Tapered Roller Bearing |
| BT383A | Tapered Roller Bearing |
| F5977 | Tapered Roller Bearing |
| G10415 | Tapered Roller Bearing |
| K2441 | Tapered Roller Bearing |
| M205 | Tapered Roller Bearing |
| UTDM205 | Tapered Roller Bearing |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 3110-00-100-3891?
Does the NSN 3110-00-100-3891 have a Schedule B code assigned?
Does NSN 3110-00-100-3891 require demilitarization?
Does NSN 3110-00-100-3891 contain precious materials?
Does NSN 3110-00-100-3891 contain hazardous materials?
When the NSN 3110-00-100-3891 was assigned to the Federal Catalog?
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Pricing
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