The Bearing,roller,needle, cataloged under National Stock Number 3110-01-054-1504, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Rbc Aircraft Products, Inc.. Government technical data includes 24 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-054-1504 |
| Primary Part Number | BACB10ET08 |
| Item Name | Bearing,roller,needle |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Rbc Aircraft Products, Inc. |
| Status | ACTIVE |
| Bearing Seal Type | CONTACT |
| Lubrication Material | GREASE |
| Outer Ring Width | 0.5650 INCHES MINIMUM AND 0.5700 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE EXPOSED SURFACES AS MOUNTED |
| Surface Treatment Document and Classification | QQ-C-320 FED SPEC SINGLE TREATMENT RESPONSE OUTER RING OUTSIDE DIAMETER |
| 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 OR AMS6441 ASSN STD SINGLE MATERIAL RESPONSE INNER RING |
| Material Document and Classification | AMS6440 ASSN STD SINGLE MATERIAL RESPONSE OR AMS6441 ASSN STD SINGLE MATERIAL RESPONSE OUTER RING |
| Material Document and Classification | AMS6440 ASSN STD SINGLE MATERIAL RESPONSE OR AMS6441 ASSN STD SINGLE MATERIAL RESPONSE ROLLER |
| Overall Outside Diameter | 1.3115 INCHES MINIMUM AND 1.3125 INCHES MAXIMUM IN |
| Alignment Type | RIGID |
| Surface Treatment | CADMIUM EXPOSED SURFACES AS MOUNTED |
| Surface Treatment | CHROMIUM OUTER RING OUTSIDE DIAMETER |
| Seal Quantity | 2 |
| Bore Diameter | 0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN |
| Material | STEEL COMP E52100 ROLLER |
| Material | STEEL COMP E52100 OUTER RING |
| Material | STEEL COMP E52100 INNER RING |
| Material | PLASTIC ACETAL SEAL |
| Material | STEEL COMP 1074 OR STEEL COMP E52100 WASHER |
| Lubrication Material Document and Classification | MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE |
| Inner Ring Width | 0.6150 INCHES MINIMUM AND 0.6250 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 |
|---|---|
| BACB10ET08 PRIMARY | Rbc Aircraft Products, Inc. (USA) |
| BACB10ET08 PRIMARY | Accurate Bushing Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| BACB10ET08 | 5/9 Secondary reference Timken Co Div the Timken Company |
| ATF8 | 5/9 Secondary reference Timken Aerospace, Inc Dba Torrington Product |
| ATF8 | 5/1 Secondary reference Timken Co Div the Timken Company |
| BACB10ET08 | 7/2 Vendor item drawing reference U.S. Government activity |
| ATF8 | 5/1 Secondary reference Rbc Aircraft Products, Inc. |
| AC47219 | 5/9 Secondary reference Timken Aerospace, Inc Dba Torrington Product |
| 8AFC1021 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| BACB10ET08 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3110-01-054-1504 is a Bearing,roller,needle, manufactured by Rbc Aircraft Products, Inc., classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-054-1504 has 2 manufacturer part numbers on file: BACB10ET08 (Rbc Aircraft Products, Inc.), BACB10ET08 (Accurate Bushing Company, Inc.).
Key specifications for BACB10ET08: Bearing Seal Type: CONTACT; Lubrication Material: GREASE; Outer Ring Width: 0.5650 INCHES MINIMUM AND 0.5700 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE EXPOSED SURFACES AS MOUNTED. 24 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.