The Bearing,roller,needle, cataloged under National Stock Number 3110-01-031-3230, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics. Government technical data includes 4 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-031-3230 |
| Primary Part Number | 645548 |
| Item Name | Bearing,roller,needle |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics |
| Status | ACTIVE |
| Style Designator | NON-SEPARABLE, OPEN END, DRAWN SHELL |
| Overall Outside Diameter | 0.4995 INCHES MINIMUM AND 0.5005 INCHES MAXIMUM IN |
| Alignment Type | RIGID |
| Bore Diameter | 0.3120 INCHES MINIMUM AND 0.3125 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 |
|---|---|
| 645548 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics (USA) |
| Reference | Meaning |
|---|---|
| 645548 | 5/9 Secondary reference Parker-Hannifin Corporation Dba Parker Motion & Control Sales |
| B-57-Z1Y | 5/9 Secondary reference Timken Aerospace, Inc Dba Torrington Product |
| 645548 | 5/1 Secondary reference Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations |
| 645548 | 5/9 Secondary reference U.S. Government activity |
NSN 3110-01-031-3230 is a Bearing,roller,needle, manufactured by Parker-Hannifin Corporation Dba Pneutronics, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-031-3230 has 1 manufacturer part number on file: 645548 (Parker-Hannifin Corporation Dba Pneutronics).
Key specifications for 645548: Style Designator: NON-SEPARABLE, OPEN END, DRAWN SHELL; Overall Width: 0.4275 INCHES MINIMUM AND 0.4375 INCHES MAXIMUM IN; Overall Outside Diameter: 0.4995 INCHES MINIMUM AND 0.5005 INCHES MAXIMUM IN; Alignment Type: RIGID. 4 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.