The Flame Sensor, cataloged under National Stock Number 4520-01-561-1247, 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 Webasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 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 | 4520-01-561-1247 |
| Primary Part Number | 91370 |
| Item Name | Flame Sensor |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Webasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 91370 PRIMARY | Webasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc (USA) |
NSN 4520-01-561-1247 is a Flame Sensor, manufactured by Webasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-561-1247 has 1 manufacturer part number on file: 91370 (Webasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc).
1 possible match (shared part number, not a government interchangeability claim): 1560-01-718-4213. Verify interchangeability with system specifications before substitution.
Key specifications for 91370: End Item Identification: 25'RBS,SICR NO.1437. 0 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.