The Detector,heat, cataloged under National Stock Number 6340-01-478-9741, is classified within Federal Supply Class 6340 (Aircraft Alarm and Signal Systems) of the Alarm, Signal, and Security Detection Systems group. The manufacturer of record is Rosemount Aerospace Inc. Dba Rosemount Aerospace Division Div Utas. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6340-01-478-9741 |
| Primary Part Number | 123DP3 |
| Item Name | Detector,heat |
| FSC / FSG | 6340 / 63 — Aircraft Alarm and Signal Systems |
| Manufacturer | Rosemount Aerospace Inc. Dba Rosemount Aerospace Division Div Utas |
| Status | ACTIVE |
| Overall Diameter | 3.000 INCHES NOMINAL IN |
| Functional Description | MONITORS THE COOLING EFFECT OF THE DUCTED AIR SUPPLYING COOLING AIR TO AVIONICS EQUIPMENT |
| 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 |
|---|---|
| 525-11433-601 | Northrop Grumman Systems Corporation (USA) |
| 123DP3 PRIMARY | Rosemount Aerospace Inc. Dba Rosemount Aerospace Division Div Utas (USA) |
NSN 6340-01-478-9741 is a Detector,heat, manufactured by Rosemount Aerospace Inc. Dba Rosemount Aerospace Division Div Utas, classified under FSC 6340, Aircraft Alarm and Signal Systems. Status: active.
NSN 6340-01-478-9741 has 2 manufacturer part numbers on file: 525-11433-601 (Northrop Grumman Systems Corporation), 123DP3 (Rosemount Aerospace Inc. Dba Rosemount Aerospace Division Div Utas).
Key specifications for 123DP3: Overall Diameter: 3.000 INCHES NOMINAL IN; Overall Length: 8.075 INCHES NOMINAL IN; Special Features: MTBF OF 50,000; OPERATING TEMPERATURE -57 TO 85 DEG C SEA LEVEL DEGC; Functional Description: MONITORS THE COOLING EFFECT OF THE DUCTED AIR SUPPLYING COOLING AIR TO AVIONICS EQUIPMENT. 2 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.