The Bearing,roller,needle, cataloged under National Stock Number 3110-00-903-7183, 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 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3110-00-903-7183 |
| Primary Part Number | B-186-NSOH |
| Item Name | Bearing,roller,needle |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Timken Aerospace, Inc Dba Torrington Product |
| Status | ACTIVE |
| Retainer Fabrication Method | PRESSED |
| Surface Finish | GROUND |
| Style Designator | NON-SEPARABLE, OPEN END, DRAWN SHELL |
| Overall Outside Diameter | 1.3750 INCHES NOMINAL IN |
| Alignment Type | RIGID |
| Surface Treatment | NICKEL OUTER RING |
| Standard Tolerance Designation | AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS |
| Bore Diameter | 1.1250 INCHES NOMINAL IN |
| Material | STEEL OUTER RING |
| Material | STEEL INNER RING |
| Material | STEEL CORROSION RESISTING ROLLER |
| 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 |
|---|---|
| B-186-NSOH PRIMARY | Timken Aerospace, Inc Dba Torrington Product (USA) |
| Reference | Meaning |
|---|---|
| 134433-001 | 5/1 Secondary reference U.S. Government activity |
| B186XNS0H | 5/9 Secondary reference Timken Aerospace, Inc Dba Torrington Product |
NSN 3110-00-903-7183 is a Bearing,roller,needle, manufactured by Timken Aerospace, Inc Dba Torrington Product, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-903-7183 has 1 manufacturer part number on file: B-186-NSOH (Timken Aerospace, Inc Dba Torrington Product).
Key specifications for B-186-NSOH: Retainer Fabrication Method: PRESSED; Surface Finish: GROUND; Style Designator: NON-SEPARABLE, OPEN END, DRAWN SHELL; Overall Width: 0.3750 INCHES NOMINAL IN. 11 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.