The Bearing,ball,airframe, cataloged under National Stock Number 3110-00-142-4340, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Schatz Bearing Corporation Dba Schatz Bearing Corp. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-142-4340 |
| Primary Part Number | AC545 |
| Item Name | Bearing,ball,airframe |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Schatz Bearing Corporation Dba Schatz Bearing Corp |
| Status | ACTIVE |
| Outer Ring Width | 0.2500 INCHES NOMINAL IN |
| Style Designator | SINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE |
| Overall Outside Diameter | 2.6250 INCHES NOMINAL IN |
| Load Direction | RADIAL |
| Bore Diameter | 2.0625 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Lubrication Material Document and Classification | MIL-G-3278 MIL SPEC SINGLE MATERIAL RESPONSE |
| Inner Ring Width | 0.2810 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| AC545 PRIMARY | Schatz Bearing Corporation Dba Schatz Bearing Corp (USA) |
| 177030-85 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| A545 | 5/9 Secondary reference Schatz Bearing Corporation Dba Schatz Bearing Corp |
| A545 | 5/9 Secondary reference Timken Co Div the Timken Company |
| A545FS160 | 5/9 Secondary reference Timken Co Div the Timken Company |
| A545 | 5/9 Secondary reference Fag Bearings Corporation |
NSN 3110-00-142-4340 is a Bearing,ball,airframe, manufactured by Schatz Bearing Corporation Dba Schatz Bearing Corp, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-142-4340 has 2 manufacturer part numbers on file: AC545 (Schatz Bearing Corporation Dba Schatz Bearing Corp), 177030-85 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
1 possible match (shared part number, not a government interchangeability claim): 5325-00-281-2175. Verify interchangeability with system specifications before substitution.
Key specifications for AC545: Outer Ring Width: 0.2500 INCHES NOMINAL IN; Style Designator: SINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE; Overall Outside Diameter: 2.6250 INCHES NOMINAL IN; Load Direction: RADIAL. 8 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.