The Insulation Pipe Covering,thermal, cataloged under National Stock Number 1660-01-434-7644, 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 Tex-Tech Engineered Composites, Llc. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Insulation Pipe Covering,thermal |
| FSC / FSG | 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment (FSG 16) |
| Manufacturers | Thermal Structures, Inc (CAGE 54787); Honeywell International Inc. Div Aerospace - Torrance (CAGE 70210); Tex-Tech Engineered Composites, Llc (CAGE 78741) |
| Parameter | Value |
|---|---|
| NSN | 1660-01-434-7644 |
| Primary Part Number | 66S26858-1 |
| Item Name | Insulation Pipe Covering,thermal |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Tex-Tech Engineered Composites, Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| 2304482-1 | Thermal Structures, Inc (USA) |
| 2304482-1 | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| 66S26858-1 PRIMARY | Tex-Tech Engineered Composites, Llc (USA) |
NSN 1660-01-434-7644 is a Insulation Pipe Covering,thermal, manufactured by Tex-Tech Engineered Composites, Llc, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-434-7644 has 3 manufacturer part numbers on file: 2304482-1 (Thermal Structures, Inc), 2304482-1 (Honeywell International Inc. Div Aerospace - Torrance), 66S26858-1 (Tex-Tech Engineered Composites, Llc).
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 1660-01-434-7644 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.