The Bearing,ball,annular, cataloged under National Stock Number 3110-01-033-8187, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-033-8187 |
| Primary Part Number | MIL-B-81793/7 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — No Item Name Available |
| Manufacturer | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| Status | ACTIVE |
| Bore Diameter | 0.2500 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Retainer Fabrication Method | PRESSED |
| Internal Fit-Up Designation | STANDARD |
| Load Direction | RADIAL |
| Outer Ring Outside Diameter | 0.6250 INCHES NOMINAL IN |
| Standard Tolerance Designation | ABEC NO.5 |
| Flange Outside Diameter | 0.6900 INCHES NOMINAL IN |
| Bore Shape | STRAIGHT |
| Surface Finish | GROUND |
| Lubrication Material | OIL |
| Flange Width | 0.0420 INCHES NOMINAL IN |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Material | STEEL COMP 440C OVERALL |
| Lubrication Material Document and Classification | MIL-L-6085 MIL SPEC SINGLE MATERIAL RESPONSE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MIL-B-81793/7 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| XAMVFS1K7 | Timken Co Div the Timken Company (USA) |
| VFS1K7 | Timken Co Div the Timken Company (USA) |
| M81793/07-JE2N2N1A1 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 10131-512 | Astronautics Corporation of America (USA) |
| SFR45K25-7 | New Hampshire Ball Bearings Inc Div Hitech Division (USA) |
NSN 3110-01-033-8187 is a Bearing,ball,annular, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 3110 (No Item Name Available). Status: active.
NSN 3110-01-033-8187 has 6 cross-referenced part numbers: MIL-B-81793/7 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), XAMVFS1K7 (Timken Co Div the Timken Company), VFS1K7 (Timken Co Div the Timken Company), M81793/07-JE2N2N1A1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 10131-512 (Astronautics Corporation of America) and 1 more.
There are 12 known substitutes for 3110-01-033-8187: 3110-00-198-1763, 3110-00-277-0230, 3110-00-293-9038 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for MIL-B-81793/7: Bore Diameter: 0.2500 INCHES NOMINAL IN; Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Retainer Fabrication Method: PRESSED; Internal Fit-Up Designation: STANDARD. 16 total characteristics are documented in the Federal Logistics Information System.