The Control Assembly,an, cataloged under National Stock Number 1660-00-474-6402, 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 Aero International, Llc Dba Ams Engineered Solutions. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-00-474-6402 |
| Primary Part Number | 1239-1A |
| Item Name | Control Assembly,an |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Aero International, Llc Dba Ams Engineered Solutions |
| Status | ACTIVE |
| FSC Application Data | ACFT ANTI-ICING SYSTEM |
| Functional Description | USED TO REGULATE COWL THERMAL ANTI-ICING TEMPERATURE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1239-1A PRIMARY | Aero International, Llc Dba Ams Engineered Solutions (USA) |
| Reference | Meaning |
|---|---|
| 10-30196-501 | 5/9 Secondary reference U.S. Government activity |
| 10-30196-501 | 5/9 Secondary reference U.S. Government activity |
| 1239-1A | 5/9 Secondary reference U.S. Government activity |
NSN 1660-00-474-6402 is a Control Assembly,an, manufactured by Aero International, Llc Dba Ams Engineered Solutions, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-474-6402 has 1 manufacturer part number on file: 1239-1A (Aero International, Llc Dba Ams Engineered Solutions).
Key specifications for 1239-1A: FSC Application Data: ACFT ANTI-ICING SYSTEM; Functional Description: USED TO REGULATE COWL THERMAL ANTI-ICING TEMPERATURE; Part Name Assigned by Controlling Agency: REGULATOR; End Item Identification: B-52G ACFT G. 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.
NSN 1660-00-474-6402 has DEMIL Code D. 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.