The Bearing,sleeve, cataloged under National Stock Number 3120-00-072-6984, 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 14 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-00-072-6984 |
| Primary Part Number | 395-0632 |
| Item Name | Bearing,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 | 32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY |
| Surface Finish | 125.0 MICROINCHES LEFT END SURFACE OF BODY |
| Corner Shape | SQUARE INSIDE RIGHT CORNER |
| Corner Shape | SQUARE INSIDE LEFT CORNER |
| Body Outside Diameter | 5.9990 INCHES MINIMUM AND 6.0000 INCHES MAXIMUM IN |
| Style Designator | SEGMENTED, PLAIN, NO OUTSIDE FLANGES |
| Material Document and Classification | MIL-S-890,CL B MIL SPEC SINGLE MATERIAL RESPONSE OUTER LAYER |
| Material Document and Classification | QQ-T-390,GR 2 FED SPEC SINGLE MATERIAL RESPONSE INNER LAYER |
| Body Inside Diameter | 4.0060 INCHES MINIMUM AND 4.0070 INCHES MAXIMUM IN |
| Antirotation/lubrication Type and Quantity | 1 HOLE |
| Material | TIN ALLOY UNS L13890 INNER LAYER |
| Material | STEEL OUTER LAYER |
| 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 |
|---|---|
| D56537PC1T06 | Siemens Energy, Inc. (USA) |
| 395-0632 PRIMARY | Siemens Energy, Inc. (USA) |
NSN 3120-00-072-6984 is a Bearing,sleeve, manufactured by Siemens Energy, Inc., classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-00-072-6984 has 2 manufacturer part numbers on file: D56537PC1T06 (Siemens Energy, Inc.), 395-0632 (Siemens Energy, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5998-00-137-2828. Verify interchangeability with system specifications before substitution.
Key specifications for 395-0632: Surface Finish: 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY; Surface Finish: 125.0 MICROINCHES RIGHT END SURFACE OF BODY; Surface Finish: 32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY; Surface Finish: 125.0 MICROINCHES LEFT END SURFACE OF BODY. 14 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.