The Head,soot Blower, cataloged under National Stock Number 4410-01-047-2785, is classified within Federal Supply Class 4410 (Industrial Boilers) of the Furnace, Steam, Drying, Nuclear Reactors group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4410-01-047-2785 |
| Item Name | Head,soot Blower |
| FSC / FSG | 4410 / 44 — Industrial Boilers |
| Status | ACTIVE |
| Body Material | STEEL |
| Cam Rotation Direction | COUNTERCLOCKWISE |
| Control Valve Operation Method | CRANK |
| Operating Pressure Type | ANY ACCEPTABLE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| X74221 DN-4 1500PSI STD | 3/9 Design control — primary reference U.S. Government activity |
| X-74221 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| X-74221 PIECE 1 | 5/9 Secondary reference U.S. Government activity |
| X74221-ASSY | 5/9 Secondary reference U.S. Government activity |
| 74223 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4410-01-047-2785 is a Head,soot Blower, classified under FSC 4410, Industrial Boilers. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 3020-01-113-7035, 3040-01-113-7867, 4520-01-251-8404. Verify interchangeability with system specifications before substitution.
Key specifications for 4410-01-047-2785: Body Material: STEEL; Cam Rotation Direction: COUNTERCLOCKWISE; Control Valve Operation Method: CRANK; Operating Pressure Type: ANY ACCEPTABLE. 4 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.