The Bearing,sleeve, cataloged under National Stock Number 3120-00-072-6986, 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 10 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-00-072-6986 |
| Primary Part Number | 395-0634 |
| 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 ALL CORNERS |
| Body Outside Diameter | 7.7490 INCHES MINIMUM AND 7.7500 INCHES MAXIMUM IN |
| Style Designator | SEGMENTED, PLAIN, NO OUTSIDE FLANGES |
| Body Inside Diameter | 6.0000 INCHES MINIMUM AND 6.0010 INCHES MAXIMUM IN |
| 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 |
|---|---|
| KD-395H U/L | Siemens Energy, Inc. (USA) |
| D56539PC1T05 | Siemens Energy, Inc. (USA) |
| 395-0634 PRIMARY | Siemens Energy, Inc. (USA) |
| D-56539 | Siemens Energy, Inc. (USA) |
NSN 3120-00-072-6986 is a Bearing,sleeve, manufactured by Siemens Energy, Inc., classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-00-072-6986 has 4 manufacturer part numbers on file: KD-395H U/L (Siemens Energy, Inc.), D56539PC1T05 (Siemens Energy, Inc.), 395-0634 (Siemens Energy, Inc.), D-56539 (Siemens Energy, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 5977-00-488-5485, 6145-01-385-8767. Verify interchangeability with system specifications before substitution.
Key specifications for 395-0634: 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. 10 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.