The Igniter,spark,aircraft Heater, cataloged under National Stock Number 1660-00-078-2406, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is Grimes Aerospace Company. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 1660-00-078-2406 |
| Primary Part Number | 39D18 |
| Item Name | Igniter,spark,aircraft Heater |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Grimes Aerospace Company |
| Status | ACTIVE |
| Length | 4.110 INCHES NOMINAL IN |
| Mounting Method | THREAD |
| Polarization Feature | NOT INCLUDED |
| Mounting Facility Thread Size | 5/8-24 |
| Width | 0.875 INCHES NOMINAL IN |
| Plug Design | STRAIGHT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 39D18 PRIMARY | Grimes Aerospace Company (USA) |
| Reference | Meaning |
|---|---|
| 39D18 | 5/2 Secondary reference U.S. Government activity |
| 39D18 | 5/9 Secondary reference Kelly Aerospace Power Systems, Inc. Dba Consolidated Fuel Systems |
NSN 1660-00-078-2406 is a Igniter,spark,aircraft Heater, manufactured by Grimes Aerospace Company, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-078-2406 has 1 manufacturer part number on file: 39D18 (Grimes Aerospace Company).
Key specifications for 39D18: Length: 4.110 INCHES NOMINAL IN; Mounting Method: THREAD; Polarization Feature: NOT INCLUDED; Mounting Facility Thread Size: 5/8-24. 6 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.
NSN 1660-00-078-2406 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.