The Control Block, cataloged under National Stock Number 4530-01-257-3613, is classified within Federal Supply Class 4530 (Fuel Burning Equipment Units) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4530-01-257-3613 |
| Primary Part Number | 951M |
| Item Name | Control Block |
| FSC / FSG | 4530 / 45 — Fuel Burning Equipment Units |
| Manufacturer | Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric |
| Status | ACTIVE |
| General Characteristics Item Description | CARBON STEEL; 3IN. X 4.375IN. X 6.250IN. 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 |
|---|---|
| 951M PRIMARY | Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric (USA) |
| Reference | Meaning |
|---|---|
| E-171-823 | 5/9 Secondary reference Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric |
NSN 4530-01-257-3613 is a Control Block, manufactured by Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric, classified under FSC 4530, Fuel Burning Equipment Units. Status: active.
NSN 4530-01-257-3613 has 1 manufacturer part number on file: 951M (Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric).
Key specifications for 951M: General Characteristics Item Description: CARBON STEEL; 3IN. X 4.375IN. X 6.250IN. IN. 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.