The Detector,heat, cataloged under National Stock Number 6350-01-528-2218, is classified within Federal Supply Class 6350 (Miscellaneous Alarm, Signal, and Security Detection Systems) of the Alarm, Signal, and Security Detection Systems group. The manufacturer of record is Wormald Technology. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6350-01-528-2218 |
| Primary Part Number | FST-851 |
| Item Name | Detector,heat |
| FSC / FSG | 6350 / 63 — Miscellaneous Alarm, Signal, and Security Detection Systems |
| Manufacturer | Wormald Technology |
| Status | ACTIVE |
| Overall Diameter | 4.100 INCHES NOMINAL IN |
| Material | PLASTIC |
| 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 |
|---|---|
| FST-851 | Wormald Technology (AUS) |
| Reference | Meaning |
|---|---|
| FST-851 | 3/9 Design control — primary reference Honeywell International Inc. Dba Notifier Div Notifier |
| FDX-551 HTE | 5/9 Secondary reference Honeywell International Inc. Dba Notifier Div Notifier |
NSN 6350-01-528-2218 is a Detector,heat, manufactured by Wormald Technology, classified under FSC 6350, Miscellaneous Alarm, Signal, and Security Detection Systems. Status: active.
NSN 6350-01-528-2218 has 1 manufacturer part number on file: FST-851 (Wormald Technology).
Key specifications for FST-851: Overall Height: 2.100 INCHES NOMINAL IN; Overall Diameter: 4.100 INCHES NOMINAL IN; Special Features: DETECTOR SPACING UL APPROVED FOR 50 FEET CENTER TO CENTER,THERMAL RATINGS,FIXED TEMPERATURE SET POINT 135 DEG FAHRENHEIT,HIGH TEMPERATURE HEAT 190 DEG FAHRENHEIT FT; Part Name Assigned by Controlling Agency: INTELLIGENT THERMAL (HEAT) DECTECORS. 2 specifications are documented in the U.S. Government catalog.
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.