The Humidifier,warm Air Heating Syst, cataloged under National Stock Number 4520-01-485-1961, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Armstrong International Inc Dba Armstrong Machine Works. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-485-1961 |
| Primary Part Number | D2264 NO 6+H198 |
| Item Name | Humidifier,warm Air Heating Syst |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Armstrong International Inc Dba Armstrong Machine Works |
| Status | ACTIVE |
| Voltage in Volts and Current Type | 115.0 AC |
| Pressure Rating | ERR-060 |
| 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 |
|---|---|
| D2264 NO 6+H198 PRIMARY | Armstrong International Inc Dba Armstrong Machine Works (USA) |
| Reference | Meaning |
|---|---|
| SM-2000-1, 12.000 W X 6.000 H | 5/9 Secondary reference Armstrong International Inc Dba Armstrong Machine Works |
| SM-2000-1,12.00 0 W X 6.000 H | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 4520-01-485-1961 is a Humidifier,warm Air Heating Syst, manufactured by Armstrong International Inc Dba Armstrong Machine Works, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-485-1961 has 1 manufacturer part number on file: D2264 NO 6+H198 (Armstrong International Inc Dba Armstrong Machine Works).
Key specifications for D2264 NO 6+H198: Overall Height: 6.000 INCHES NOMINAL IN; Voltage in Volts and Current Type: 115.0 AC; Overall Width: 12.000 INCHES NOMINAL IN; Pressure Rating: ERR-060. 2 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.