The Insulation Pipe Covering,thermal, cataloged under National Stock Number 1660-01-060-5502, 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 Tighitco Inc.. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-060-5502 |
| Primary Part Number | 128EC61210-25 |
| Item Name | Insulation Pipe Covering,thermal |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Tighitco Inc. |
| Status | ACTIVE |
| Nominal Fitting Size Accommodated | 2.000 INCHES IN |
| Fitting Type Accommodated | ANGLE VALVE |
| Layer Quantity | 1 |
| 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 |
|---|---|
| 128EC61210-25 | Northrop Grumman Systems Corporation (USA) |
| 128EC61210-25 PRIMARY | Tighitco Inc. (USA) |
| Reference | Meaning |
|---|---|
| 128EC61210-25 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 1660-01-060-5502 is a Insulation Pipe Covering,thermal, manufactured by Tighitco Inc., classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-060-5502 has 2 manufacturer part numbers on file: 128EC61210-25 (Northrop Grumman Systems Corporation), 128EC61210-25 (Tighitco Inc.).
Key specifications for 128EC61210-25: Nominal Fitting Size Accommodated: 2.000 INCHES IN; Fitting Type Accommodated: ANGLE VALVE; Layer Quantity: 1. 3 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 1660-01-060-5502 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.