The Diaphragm,clutch Cylinder, cataloged under National Stock Number 3010-01-256-7161, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is General Electric Company. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3010-01-256-7161 |
| Primary Part Number | 1139G34-7 |
| Item Name | Diaphragm,clutch Cylinder |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| General Characteristics Item Description | SYN RUBBER |
| 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 |
|---|---|
| 1105-0036 | Kobelt Manufacturing Co. Ltd. (CAN) |
| 1139G34-7 PRIMARY | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| DGR4350B PT70F | 5/9 Secondary reference Siemens Energy, Inc. |
| D1704ADF | D/9 Drawing number reference only Kobelt Manufacturing Co. Ltd. |
| D1704ADF ITEM 14 | 5/9 Secondary reference Kobelt Manufacturing Co. Ltd. |
NSN 3010-01-256-7161 is a Diaphragm,clutch Cylinder, manufactured by General Electric Company, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-256-7161 has 2 manufacturer part numbers on file: 1105-0036 (Kobelt Manufacturing Co. Ltd.), 1139G34-7 (General Electric Company).
2 possible matches (shared part number, not a government interchangeability claim): 3040-01-257-2395, 4820-01-573-0848. Verify interchangeability with system specifications before substitution.
Key specifications for 1139G34-7: General Characteristics Item Description: SYN RUBBER. 1 specification is 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.