The Insulation Board,thermal, cataloged under National Stock Number 5640-01-007-1981, is classified within Federal Supply Class 5640 (Wallboard, Building Paper, and Thermal Insulation Materials) of the Construction and Building Materials group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5640-01-007-1981 |
| Item Name | Insulation Board,thermal |
| FSC / FSG | 5640 / 56 — Wallboard, Building Paper, and Thermal Insulation Materials |
| Status | ACTIVE |
| Coverage Length | 96.000 INCHES NOMINAL IN |
| Temp Rating | 165.0 FAHRENHEIT DEGF |
| One Side Decoration Provision | NOT PROVIDED |
| Water Repellent Coated Surface | NOT PROVIDED |
| Overall Thickness | 1.000 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | 1 TYPE AND A CLASS |
| Coverage Width | 24.000 INCHES NOMINAL IN |
| Maximum Thermal Conductivity | NOT RATED |
| Flameproof Feature | NOT INCLUDED |
| Material | PLASTIC POLYSTYRENE LOCATION NOT OTHERWISE SPECIFIED |
| Density Rating | 1.5 POUNDS PER CUBIC FOOT LBS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| HH-I-524 | 4/1 Identification reference U.S. Government activity |
NSN 5640-01-007-1981 is a Insulation Board,thermal, classified under FSC 5640, Wallboard, Building Paper, and Thermal Insulation Materials. Status: active.
Key specifications for 5640-01-007-1981: Coverage Length: 96.000 INCHES NOMINAL IN; Temp Rating: 165.0 FAHRENHEIT DEGF; One Side Decoration Provision: NOT PROVIDED; Water Repellent Coated Surface: NOT PROVIDED. 11 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.