The Diffuser,air,boiler, cataloged under National Stock Number 4530-01-181-1966, is classified within Federal Supply Class 4530 (Fuel Burning Equipment Units) of the Plumbing, Heating, and Waste Disposal group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4530-01-181-1966 |
| Item Name | Diffuser,air,boiler |
| FSC / FSG | 4530 / 45 — Fuel Burning Equipment Units |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL |
| 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 |
|---|---|
| 275-186 | 3/9 Design control — primary reference Aqua-Chem Inc Cleaver-Brooks Div |
| 275-186 | C/1 Advisory reference — outside the item-of-supply concept Aqua-Chem, Inc. Dba Aqua-Chem Inc |
NSN 4530-01-181-1966 is a Diffuser,air,boiler, classified under FSC 4530, Fuel Burning Equipment Units. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6150-01-526-7041. Verify interchangeability with system specifications before substitution.
Key specifications for 4530-01-181-1966: General Characteristics Item Description: STEEL. 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.