The Burner Assembly,space Heater, cataloged under National Stock Number 4520-01-365-0743, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4520-01-365-0743 |
| Primary Part Number | OFWB-516 |
| Item Name | Burner Assembly,space Heater |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Rnk International, Inc. Dba Rnk International Inc |
| Status | ACTIVE |
| End Item Source | 01021 |
| 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 |
|---|---|
| OFWB-516 | Rnk International, Inc. Dba Rnk International Inc (USA) |
| Reference | Meaning |
|---|---|
| K530W | 3/9 Design control — primary reference Aldrico, Inc. Dba Aldrich Company |
NSN 4520-01-365-0743 is a Burner Assembly,space Heater, manufactured by Rnk International, Inc. Dba Rnk International Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-365-0743 has 1 manufacturer part number on file: OFWB-516 (Rnk International, Inc. Dba Rnk International Inc).
Key specifications for OFWB-516: End Item Source: 01021; Special Features: OIL FIRED HOT WATER; 468,000 BTU/HR; 30 PSI; WITH LOW WATER CUT OFF,AND FURNISHED NECESSARY ITEMS; End Item Identification: SERIES-K-HEATERS. 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.