The Bushing,sleeve, cataloged under National Stock Number 3120-00-802-9261, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Siemens Energy, Inc.. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-00-802-9261 |
| Primary Part Number | W158N4 |
| Item Name | Bushing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Siemens Energy, Inc. |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY |
| Surface Finish | 125.0 MICROINCHES RIGHT END SURFACE OF BODY |
| Surface Finish | 63.0 MICROINCHES LEFT END SURFACE OF BODY |
| Corner Shape | SQUARE INSIDE RIGHT CORNER |
| Corner Shape | SQUARE OUTSIDE RIGHT CORNER |
| Corner Shape | SQUARE INSIDE LEFT CORNER |
| Corner Shape | CHAMFERED OUTSIDE LEFT CORNER |
| Body Outside Diameter | 1.5014 INCHES MINIMUM AND 1.5018 INCHES MAXIMUM IN |
| Style Designator | SOLID, PLAIN, NO OUTSIDE FLANGES |
| Body Inside Diameter | 0.6250 INCHES MINIMUM AND 0.6257 INCHES MAXIMUM IN |
| Material | COPPER ALLOY 934 OUTSIDE DIAMETER SURFACE OF BODY |
| 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 |
|---|---|
| W158N4 PRIMARY | Siemens Energy, Inc. (USA) |
| Reference | Meaning |
|---|---|
| W158N4 | 5/9 Secondary reference Imo Industries Inc Delroyd Worm Gear Div |
| SG3859REVAPC10 | 5/9 Secondary reference Circor Pumps North America Llc |
| SG3859REVAPC10 | 5/9 Secondary reference Siemens Energy, Inc. |
NSN 3120-00-802-9261 is a Bushing,sleeve, manufactured by Siemens Energy, Inc., classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-00-802-9261 has 1 manufacturer part number on file: W158N4 (Siemens Energy, Inc.).
Key specifications for W158N4: Surface Finish: 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY; Surface Finish: 125.0 MICROINCHES RIGHT END SURFACE OF BODY; Surface Finish: 63.0 MICROINCHES LEFT END SURFACE OF BODY; Corner Shape: SQUARE INSIDE RIGHT CORNER. 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.