The Core Material,cellular,structura, cataloged under National Stock Number 5680-00-618-8078, is classified within Federal Supply Class 5680 (Miscellaneous Construction Materials) of the Construction and Building Materials group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5680-00-618-8078 |
| Item Name | Core Material,cellular,structura |
| FSC / FSG | 5680 / 56 — Miscellaneous Construction Materials |
| Status | ACTIVE |
| Cell Size | 0.188 IN. IN |
| Cell Perforation | NOT INCLUDED |
| Maximum Density Rating | 9.9 POUNDS PER CUBIC FOOT LBS |
| Cell Depth | 0.750 INCHES NOMINAL IN |
| Designed Transverse Direction Dimension | 40.000 IN. IN |
| Nondefinitive Spec/std Data | II CLASS AND 1-C TYPE AND B GRADE |
| Maximum Service Temp Limit | 350.0 DEG FAHRENHEIT |
| Material | GLASS BASIC |
| Designed Ribbon Direction Dimension | 70.000 IN. IN |
| Cell Condition | EXPANDED |
| 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 |
|---|---|
| N0NUMBER52 | 3/2 Design control — primary reference U.S. Government activity |
| MILC8073 | 4/1 Identification reference U.S. Government activity |
NSN 5680-00-618-8078 is a Core Material,cellular,structura, classified under FSC 5680, Miscellaneous Construction Materials. Status: active.
9 possible matches (shared part number, not a government interchangeability claim): 5680-00-634-8593, 5680-00-634-8594, 5680-00-684-0716. Verify interchangeability with system specifications before substitution.
Key specifications for 5680-00-618-8078: Cell Size: 0.188 IN. IN; Cell Perforation: NOT INCLUDED; Maximum Density Rating: 9.9 POUNDS PER CUBIC FOOT LBS; Cell Depth: 0.750 INCHES NOMINAL IN. 10 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.