The Insulation Pipe Covering,thermal, cataloged under National Stock Number 1660-00-253-1502, 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. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 1660-00-253-1502 |
| Primary Part Number | 1128EC40162-17 |
| Item Name | Insulation Pipe Covering,thermal |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| 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 |
|---|---|
| 1128EC40162-17 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 1128EC40162-17 | Tighitco Inc. (USA) |
| Reference | Meaning |
|---|---|
| 128EC40162-17 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| 128EC40162-17 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
| 1128EC40162-17 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 1660-00-253-1502 is a Insulation Pipe Covering,thermal, manufactured by Northrop Grumman Systems Corporation, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-253-1502 has 2 manufacturer part numbers on file: 1128EC40162-17 (Northrop Grumman Systems Corporation), 1128EC40162-17 (Tighitco Inc.).
Key specifications for 1128EC40162-17: Special Features: 2.75 IN.OD,2.00 IN.ID,40 DEG DO MIN ELBOW SECTION; IN. 0 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.