The Bearing,ball,annular, cataloged under National Stock Number 3110-00-157-1908, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Lockheed Martin Librascope Corporation. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 33 commercial cross-references from 20 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 3110-00-157-1908 |
| Primary Part Number | 304770-3 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — No Item Name Available |
| Manufacturer | Lockheed Martin Librascope Corporation |
| Status | CANCELLED |
| Bore Diameter | 0.2500 INCHES MINIMUM AND 0.2503 INCHES MAXIMUM IN |
| Load Direction | RADIAL |
| Internal Fit-Up Designation | STANDARD |
| Load Direction | RADIAL |
| Surface Finish | GROUND |
| Bore Shape | STRAIGHT |
| Outer Ring Taper | 0.6253 PER FOOT IN INCHES NOMINAL |
| Retainer Fabrication Method | PRESSED |
| Outer Ring Taper | 0.6253 PER FOOT IN INCHES NOMINAL |
| Bore Shape | STRAIGHT |
| Material | STEEL BALL |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Material | STEEL INNER RING |
| Material | COPPER ALLOY RETAINER |
| Material | STEEL INNER RING |
| Internal Fit-Up Designation | STANDARD |
| Flange Outside Diameter | 0.6920 INCHES NOMINAL IN |
| Flange Width | 0.0470 INCHES NOMINAL IN |
| Outer Ring Width | 0.2290 INCHES NOMINAL IN |
| Material | STEEL OUTER RING |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Inner Ring Width | 0.2480 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| F4 | Hayley Group Ltd (GBR) |
| 1000R59 | Raytheon Company Div Corp (USA) |
| T4935021-23 | General Electric Company (USA) |
| 8907-14 | Arma Div Ambac Industries Inc |
| 304770-3 PRIMARY | Lockheed Martin Librascope Corporation (USA) |
| 299581-1 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 302-1017P3 | Raytheon Company Dba Raytheon Co (USA) |
| XF77 PRIMARY | Fag Bearings Corporation (USA) |
| 1000R59 | Raytheon Company Dba Raytheon Co (USA) |
| 109119-23 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 712162 | Army Weapons Command Attn Amswe-Ree-S (USA) |
| 1166262PC4 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 149473-4 PRIMARY | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| 2008-11C109P8 PRIMARY | L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products (USA) |
| 653470-4 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| M3908C PRIMARY | Timken Co Div the Timken Company (USA) |
| 550504 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| 1000R59 PRIMARY | Raytheon Company Dba Raytheon Co (USA) |
| F4 | Timken Co Div the Timken Company (USA) |
| 177007-13 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 3110-00-157-1908 is a Bearing,ball,annular, manufactured by Lockheed Martin Librascope Corporation, classified under FSC 3110 (No Item Name Available). Status: cancelled.
NSN 3110-00-157-1908 has 33 cross-referenced part numbers: F4 (Hayley Group Ltd), 1000R59 (Raytheon Company Div Corp), T4935021-23 (General Electric Company), 8907-14 (Arma Div Ambac Industries Inc), 304770-3 (Lockheed Martin Librascope Corporation) and 28 more.
There are 12 known substitutes for 3110-00-157-1908: 6240-00-014-2870, 3110-00-108-9336, 5305-00-157-8557 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 304770-3: Bore Diameter: 0.2500 INCHES MINIMUM AND 0.2503 INCHES MAXIMUM IN; Load Direction: RADIAL; Internal Fit-Up Designation: STANDARD; Load Direction: RADIAL. 22 total characteristics are documented in the Federal Logistics Information System.
NSN 3110-00-157-1908 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.