The Bearing,roller,needle, cataloged under National Stock Number 3110-00-184-5396, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Timken Aerospace, Inc Dba Torrington Product. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3110-00-184-5396 |
| Primary Part Number | AT12SDA |
| Item Name | Bearing,roller,needle |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Timken Aerospace, Inc Dba Torrington Product |
| Status | ACTIVE |
| Overall Outside Diameter | 1.8750 INCHES NOMINAL IN |
| Features Provided | ALIGNING RING |
| Alignment Type | SELF-ALIGNING |
| Standard Tolerance Designation | AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS |
| Bore Diameter | 0.7500 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 |
|---|---|
| AT12SDA PRIMARY | Timken Aerospace, Inc Dba Torrington Product (USA) |
| AT12SDA PRIMARY | Rbc Aircraft Products, Inc. (USA) |
| AT12SDAANG25 PRIMARY | Rbc Aircraft Products, Inc. (USA) |
| Reference | Meaning |
|---|---|
| AT12SDAANG25 | 5/9 Secondary reference Timken Aerospace, Inc Dba Torrington Product |
| AT125DA | 5/9 Secondary reference Timken Aerospace, Inc Dba Torrington Product |
NSN 3110-00-184-5396 is a Bearing,roller,needle, manufactured by Timken Aerospace, Inc Dba Torrington Product, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-184-5396 has 3 manufacturer part numbers on file: AT12SDA (Timken Aerospace, Inc Dba Torrington Product), AT12SDA (Rbc Aircraft Products, Inc.), AT12SDAANG25 (Rbc Aircraft Products, Inc.).
Key specifications for AT12SDA: Overall Outside Diameter: 1.8750 INCHES NOMINAL IN; Features Provided: ALIGNING RING; Alignment Type: SELF-ALIGNING; Special Features: BLACK OXIDE OUTER RACE,CADMIUM ALL OTHER EXPOSED SURFACES. 5 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.