The Bearing,ball,annular, cataloged under National Stock Number 3110-00-891-5188, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 7 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 | 3110-00-891-5188 |
| Primary Part Number | A3301-2 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — No Item Name Available |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Bore Diameter | 0.2500 INCHES NOMINAL IN |
| Surface Finish | GROUND |
| Retainer Fabrication Method | PRESSED |
| Material | STEEL OVERALL |
| Standard Tolerance Designation | ABEC NO.1 |
| Bore Shape | STRAIGHT |
| Load Direction | RADIAL |
| Internal Fit-Up Designation | STANDARD |
| Flange Outside Diameter | 0.6875 INCHES NOMINAL IN |
| Flange Width | 0.0420 INCHES NOMINAL IN |
| Outer Ring Width | 0.2260 INCHES NOMINAL IN |
| Inner Ring Width | 0.2500 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| A3301-2 | Lockheed Martin Corporation Div Rms (USA) |
| F4FS174 | Timken Co Div the Timken Company (USA) |
| A3301-2 | Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems (USA) |
| F4E7882 | Timken Co Div the Timken Company (USA) |
| FF-B-171 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| F4FS27882 | Timken Co Div the Timken Company (USA) |
| F4 | Timken Co Div the Timken Company (USA) |
| NR4HZJ1J | General Motors Corp (USA) |
| NR4HZJ1J | General Motors Corp Delco Moraine Ndh Div (USA) |
| NR4HZJ1J | General Motors Llc Dba General Motors Llc (USA) |
NSN 3110-00-891-5188 is a Bearing,ball,annular, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 3110 (No Item Name Available). Status: active.
NSN 3110-00-891-5188 has 10 cross-referenced part numbers: A3301-2 (Lockheed Martin Corporation Div Rms), F4FS174 (Timken Co Div the Timken Company), A3301-2 (Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems), F4E7882 (Timken Co Div the Timken Company), FF-B-171 (Federal Specifications Promulgated by General Services Administration Washington DC) and 5 more.
There are 12 known substitutes for 3110-00-891-5188: 6240-00-014-2870, 3110-00-108-9336, 3110-00-157-1908 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for A3301-2: Bore Diameter: 0.2500 INCHES NOMINAL IN; Surface Finish: GROUND; Retainer Fabrication Method: PRESSED; Material: STEEL OVERALL. 12 total characteristics are documented in the Federal Logistics Information System.