BACB10A31DD
View detailed technical data, stock status, and sourcing information for: BACB10A31DD
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Federal Supply Group
Bearings
Federal Supply Classification
3110 Unmounted Antifriction Bearings
National Stock Number
3110-01-031-5440
Item Name Code
00041
Assigment Date
11/26/1976 (49 years ago)
1.8115 inches minimum and 1.8135 inches maximum bore diameter, 0.2760 inches minimum and 0.2810 inches maximum inner ring width, 0.2450 inches minimum and 0.2500 inches maximum outer ring width, 2.2485 inches minimum and 2.2500 inches maximum overall outside diameter, 2 seal quantity
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Bore Diameter
- 1.8115 inches minimum and 1.8135 inches maximum
- Overall Outside Diameter
- 2.2485 inches minimum and 2.2500 inches maximum
- Outer Ring Width
- 0.2450 inches minimum and 0.2500 inches maximum
- Inner Ring Width
- 0.2760 inches minimum and 0.2810 inches maximum
- Seal Quantity
- 2
- Bearing Seal Type
- contact
- Load Direction
- radial
- Special Features
- filled with 80 pct of specified lubricant,radial clearance 0.0008 in. min 0.0018 in. max
- Lubrication Material
- grease
- Lubrication Material Document And Classification
- mil-g-81322 mil spec single material response
- Material
- plastic polytetrafluoroethylene seal
- Material
- steel comp e51100 or steel comp e52100 ball
- Material
- steel comp e52100 inner ring
- Material
- steel comp e52100 outer ring
- Material Document And Classification
- ams 3652 assn std single material response or ams 3666 assn std single material response seal
- Surface Treatment
- cadmium all external/exposed metal surfaces
- Style Designator
- single row inner ring extended both sides
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 3110-00-011-9139 | No Name Available | 07/01/1998 |
| 3110-00-839-6359 | No Name Available | 03/01/1990 |
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 |
|---|---|
| B544DD | Airframe Ball Bearing |
| B544DD FS4640 | Airframe Ball Bearing |
| B544DDFS464 | Airframe Ball Bearing |
| B544SS-G27 | Airframe Ball Bearing |
| BACB10A31DD | Airframe Ball Bearing |
| BACB10CF29PP | Airframe Ball Bearing |
| MS27646-44 | Airframe Ball Bearing |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 3110-01-031-5440?
The FSCG of the NSN 3110-01-031-5440 is 3110
Does the NSN 3110-01-031-5440 have a Schedule B code assigned?
Yes, the Schedule B code is 8482105068
Does NSN 3110-01-031-5440 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 3110-01-031-5440 contain precious materials?
Precious metal content is unknown
Does NSN 3110-01-031-5440 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 3110-01-031-5440 was assigned to the Federal Catalog?
It was assigned 49 years ago, on Fri, Nov 26, 1976
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Pricing
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In Stock
This item is currently available and ready for prompt shipment. Units may be offered in various conditions — new, surplus, or refurbished — and stored at verified global facilities. Request a quote to confirm current stock and delivery time.
| New Material | 162 |
| New Surplus | 125 |
| As Removed | 1 |
| Serviceable | 1 |
| Overhauled | 1 |
| Total | 290 |
Availability of this item was last updated on:
05/19/2026 08:05 PM EDT.
Stock levels and pricing are subject to change.