The Boiler,heating,low Pressure, cataloged under National Stock Number 4520-01-326-9197, 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 Rnk International, Inc. Dba Rnk International Inc. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4520-01-326-9197 |
| Primary Part Number | 0FWB-861 |
| Item Name | Boiler,heating,low Pressure |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Rnk International, Inc. Dba Rnk International Inc |
| Status | ACTIVE |
| Unable to Decode | UNABLE TO DECODE |
| Firing Type | OIL |
| Overall Diameter | 40.750 INCHES NOMINAL IN |
| Horsepower Rating | 23.7 |
| Oil for Which Designed | 2 |
| Boiler Type | VERTICAL FIRE TUBE |
| Jacket Inclosure Feature | INCLUDED |
| Heat Delivery Rate in Btu Per Hour | 792.0 |
| 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 |
|---|---|
| 0FWB-861 | Rnk International, Inc. Dba Rnk International Inc (USA) |
| Reference | Meaning |
|---|---|
| K890 | 5/9 Secondary reference Aldrico, Inc. Dba Aldrich Company |
| K890W | 3/9 Design control — primary reference Aldrico, Inc. Dba Aldrich Company |
NSN 4520-01-326-9197 is a Boiler,heating,low Pressure, manufactured by Rnk International, Inc. Dba Rnk International Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-326-9197 has 1 manufacturer part number on file: 0FWB-861 (Rnk International, Inc. Dba Rnk International Inc).
Key specifications for 0FWB-861: Overall Height: 69.500 INCHES NOMINAL IN; Unable to Decode: UNABLE TO DECODE; Firing Type: OIL; Overall Diameter: 40.750 INCHES NOMINAL IN. 8 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.