The Bearing,ball,thrust, cataloged under National Stock Number 3110-00-156-1921, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Department of the Navy. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-156-1921 |
| Primary Part Number | 20325 |
| Item Name | Bearing,ball,thrust |
| FSC / FSG | 3110 / 31 — No Item Name Available |
| Manufacturer | Department of the Navy |
| Status | ACTIVE |
| Surface Finish | GROUND |
| Alignment Type | RIGID |
| Material | STEEL COMP E51100 OR STEEL COMP E52100 OVERALL |
| Thrust Directional Capability Designation | SINGLE |
| Overall Outside Diameter | 175.0 MILLIMETERS NOMINAL MM |
| Style Designator | GROOVED RACE SURFACE |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| Standard Tolerance Designation | AFBMA STD TOLERANCE FOR THRUST BEARINGS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20325 | Department of the Navy (USA) |
| N1825 | Timken Co Div the Timken Company (USA) |
| 72-6970-956 | Fairbanks Morse, Llc (USA) |
| 72-6970-956 | Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco (USA) |
| A-A-52491 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| MS17161-142 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| A52491-142 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| 925 | Skf Usa Inc. (USA) |
| 1125F6 | Skf Usa Inc. (USA) |
NSN 3110-00-156-1921 is a Bearing,ball,thrust, manufactured by Department of the Navy, classified under FSC 3110 (No Item Name Available). Status: active.
NSN 3110-00-156-1921 has 9 cross-referenced part numbers: 20325 (Department of the Navy), N1825 (Timken Co Div the Timken Company), 72-6970-956 (Fairbanks Morse, Llc), 72-6970-956 (Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco), A-A-52491 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC) and 4 more.
There are 10 known substitutes for 3110-00-156-1921: 5950-00-255-3498, 5325-00-985-3159, 4910-01-157-6457 and 7 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20325: Surface Finish: GROUND; Alignment Type: RIGID; Material: STEEL COMP E51100 OR STEEL COMP E52100 OVERALL; Thrust Directional Capability Designation: SINGLE. 9 total characteristics are documented in the Federal Logistics Information System.