The Core Material,cellular,structura, cataloged under National Stock Number 5680-00-926-4649, is classified within Federal Supply Class 5680 (Miscellaneous Construction Materials) of the Construction and Building Materials group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 5680-00-926-4649 |
| Item Name | Core Material,cellular,structura |
| FSC / FSG | 5680 / 56 — Miscellaneous Construction Materials |
| Status | ACTIVE |
| Cell Size | 3/16 IN. IN |
| Maximum Density Rating | 3.1 POUNDS PER CUBIC FOOT LBS |
| Material Document and Classification | QQ-A-250/8, ALLOY 5052 FED SPEC SINGLE MATERIAL RESPONSE BASIC |
| Cell Depth | 0.375 INCHES NOMINAL IN |
| Designed Transverse Direction Dimension | 12.000 |
| Maximum Service Temp Limit | 350.0 DEG FAHRENHEIT |
| Material | ALUMINUM ALLOY 5052 BASIC |
| Designed Ribbon Direction Dimension | 12.000 |
| 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 |
|---|---|
| SAE-AMS-C-7438 | 3/1 Design control — primary reference Sae International Dba Sae International |
| MIL-C-7438 | 5/9 Secondary reference U.S. Government activity |
| SAE-AMS-C-7438 GRB | 5/9 Secondary reference U.S. Government activity |
| SAE-AMS-C-7438 GRBCLW | 5/1 Secondary reference U.S. Government activity |
| MIL-C-7438 GRBCL2 | 5/9 Secondary reference U.S. Government activity |
NSN 5680-00-926-4649 is a Core Material,cellular,structura, classified under FSC 5680, Miscellaneous Construction Materials. Status: active.
4 possible matches (shared part number, not a government interchangeability claim): 5680-00-926-4650, 5680-00-926-4651, 5680-00-954-5065. Verify interchangeability with system specifications before substitution.
Key specifications for 5680-00-926-4649: Cell Size: 3/16 IN. IN; Maximum Density Rating: 3.1 POUNDS PER CUBIC FOOT LBS; Material Document and Classification: QQ-A-250/8, ALLOY 5052 FED SPEC SINGLE MATERIAL RESPONSE BASIC; Cell Depth: 0.375 INCHES NOMINAL IN. 9 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.