The Bearing,ball,annular, cataloged under National Stock Number 3110-00-155-6491, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 24 commercial cross-references from 20 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 3110-00-155-6491 |
| Primary Part Number | 1B6571 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — No Item Name Available |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | CANCELLED |
| Bore Shape | STRAIGHT |
| Material | STEEL INNER RING |
| Material | STEEL BALL |
| Standard Tolerance Designation | ABEC NO.1 |
| Material | STEEL OUTER RING |
| Style Designator | LOADING GROOVE, NON-SEPARABLE |
| Load Direction | RADIAL |
| Surface Finish | GROUND |
| Overall Outside Diameter | 215.00 MILLIMETERS NOMINAL MM |
| Internal Fit-Up Designation | STANDARD |
| Bore Diameter | 100.00 MILLIMETERS NOMINAL MM |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 1B6571 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| 1320 | Department of the Navy (USA) |
| 1320M | Schatz Bearing Corporation Dba Schatz Bearing Corp (USA) |
| 1320 | General Motors Corp (USA) |
| 1320 PRIMARY | Skf Usa Inc. (USA) |
| FFB171 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 320M PRIMARY | Skf Usa Inc. (USA) |
| 72-6970-060 PRIMARY | Fairbanks Morse, Llc (USA) |
| 1320 | General Motors Llc Dba General Motors Llc (USA) |
| 177009-103 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 1320SA | Schatz Bearing Corporation Dba Schatz Bearing Corp (USA) |
| 543430 PRIMARY | Westinghouse Electric Corp (USA) |
| 1320 | Equitable Bearing Co Inc (USA) |
| 92994-3 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 6320MAX PRIMARY | Naval Ship Systems Command (USA) |
| 700574 | Army Weapons Command Attn Amswe-Ree-S (USA) |
| 1320 PRIMARY | Federal-Mogul Corp Government Sales Dept (USA) |
| 72-6970-060 | Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco (USA) |
| M320CE1TX9 PRIMARY | Nsk Corp Bearing Div (USA) |
| 543430 | Westinghouse Electric Corp Power Generation-Generator Div (USA) |
NSN 3110-00-155-6491 is a Bearing,ball,annular, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 3110 (No Item Name Available). Status: cancelled.
NSN 3110-00-155-6491 has 24 cross-referenced part numbers: 1B6571 (Caterpillar Inc Div Caterpillar Defense), 1320 (Department of the Navy), 1320M (Schatz Bearing Corporation Dba Schatz Bearing Corp), 1320 (General Motors Corp), 1320 (Skf Usa Inc.) and 19 more.
There are 8 known substitutes for 3110-00-155-6491: 6240-00-132-5372, 2805-00-275-3012, 5340-00-467-3734 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1B6571: Bore Shape: STRAIGHT; Material: STEEL INNER RING; Material: STEEL BALL; Standard Tolerance Designation: ABEC NO.1. 12 total characteristics are documented in the Federal Logistics Information System.
NSN 3110-00-155-6491 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.