The Detector,thermal, cataloged under National Stock Number 4210-01-266-9529, is classified within Federal Supply Class 4210 (Firefighting Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Kidde Technologies, Inc Div Kidde Aerospace and Defense. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Detector,thermal |
| FSC / FSG | 4210 — Firefighting Equipment (FSG 42) |
| Manufacturers | Kidde Technologies, Inc Div Kidde Aerospace and Defense (CAGE 61423) |
| Parameter | Value |
|---|---|
| NSN | 4210-01-266-9529 |
| Primary Part Number | S578 ITEM 9 |
| Item Name | Detector,thermal |
| FSC / FSG | 4210 / 42 — Firefighting Equipment |
| Manufacturer | Kidde Technologies, Inc Div Kidde Aerospace and Defense |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| S578 ITEM 9 PRIMARY | Kidde Technologies, Inc Div Kidde Aerospace and Defense (USA) |
| Reference | Meaning |
|---|---|
| S578 | D/9 Drawing number reference only Kidde Technologies, Inc Div Kidde Aerospace and Defense |
| 30-159-4 | 5/9 Secondary reference Kidde Technologies, Inc Div Kidde Aerospace and Defense |
NSN 4210-01-266-9529 is a Detector,thermal, manufactured by Kidde Technologies, Inc Div Kidde Aerospace and Defense, classified under FSC 4210, Firefighting Equipment. Status: active.
NSN 4210-01-266-9529 has 1 manufacturer part number on file: S578 ITEM 9 (Kidde Technologies, Inc Div Kidde Aerospace and Defense).
2 possible matches (shared part number, not a government interchangeability claim): 4210-01-274-4817, 6625-01-486-5318. Verify interchangeability with system specifications before substitution.
Possible hazard — SDS may be required (DLA HMIC P). 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.