The Bearing,roller,needle, cataloged under National Stock Number 3110-01-327-2303, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Timken Co Div the Timken Company. Government technical data includes 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-327-2303 |
| Primary Part Number | ATF03 |
| Item Name | Bearing,roller,needle |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Timken Co Div the Timken Company |
| Status | ACTIVE |
| Bearing Seal Type | CONTACT |
| Lubrication Material | GREASE |
| Outer Ring Width | 0.2650 INCHES MINIMUM AND 0.2800 INCHES MAXIMUM IN |
| Surface Finish | GROUND |
| Crown Radius | 12.5000 INCHES MINIMUM AND 14.5000 INCHES MAXIMUM IN |
| Style Designator | TRACK ROLLER |
| Material Document and Classification | AMS6440 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Overall Outside Diameter | 0.7490 INCHES MINIMUM AND 0.7510 INCHES MAXIMUM IN |
| Specification/standard Data | 81205-BACB10ET03 MANUFACTURERS SOURCE CONTROL |
| Alignment Type | RIGID |
| Surface Treatment | CADMIUM OVERALL |
| Seal Quantity | 2 |
| Bore Diameter | 0.1893 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM IN |
| Material | STEEL COMP 1074 OVERALL |
| Lubrication Material Document and Classification | MIL-G23827 MIL SPEC SINGLE MATERIAL RESPONSE |
| Inner Ring Width | 0.3020 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM 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 |
|---|---|
| ATF03 PRIMARY | Timken Co Div the Timken Company (USA) |
| ATF03 PRIMARY | Rbc Aircraft Products, Inc. (USA) |
| Reference | Meaning |
|---|---|
| ATF03 | 5/9 Secondary reference Timken Aerospace, Inc Dba Torrington Product |
| BACB10ET03 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 3110-01-327-2303 is a Bearing,roller,needle, manufactured by Timken Co Div the Timken Company, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-327-2303 has 2 manufacturer part numbers on file: ATF03 (Timken Co Div the Timken Company), ATF03 (Rbc Aircraft Products, Inc.).
Key specifications for ATF03: Bearing Seal Type: CONTACT; Lubrication Material: GREASE; Outer Ring Width: 0.2650 INCHES MINIMUM AND 0.2800 INCHES MAXIMUM IN; Surface Finish: GROUND. 16 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.