The Tank,coolant Fluid,aircraft, cataloged under National Stock Number 1660-00-006-7955, 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 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 1660-00-006-7955 |
| Primary Part Number | A51E9083-3 |
| Item Name | Tank,coolant Fluid,aircraft |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| Status | ACTIVE |
| General Characteristics Item Description | 13.56 IN. LG,6.00 IN. DIA WITH 2 PORTS AND MIRROR IMAGE GAGE READING IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 167243-2-1 | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| A51E9083-3 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems (USA) |
| A51E9083 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A51E9083-3 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| A51E9083-3 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
NSN 1660-00-006-7955 is a Tank,coolant Fluid,aircraft, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-006-7955 has 3 manufacturer part numbers on file: 167243-2-1 (Honeywell International Inc. Div Aerospace - Torrance), A51E9083-3 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems), A51E9083 (Northrop Grumman Systems Corporation).
Key specifications for A51E9083-3: General Characteristics Item Description: 13.56 IN. LG,6.00 IN. DIA WITH 2 PORTS AND MIRROR IMAGE GAGE READING IN. 1 specification is 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 1660-00-006-7955 has DEMIL Code B. 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.