The Core Material,cellular,structura, cataloged under National Stock Number 5680-00-686-1040, is classified within Federal Supply Class 5680 (Miscellaneous Construction Materials) of the Construction and Building Materials group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5680-00-686-1040 |
| Item Name | Core Material,cellular,structura |
| FSC / FSG | 5680 / 56 — Miscellaneous Construction Materials |
| Status | ACTIVE |
| Cell Size | 0.125 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 |
| Nondefinitive Spec/std Data | 3.1-1/8-20P TEMPER |
| Material | ALUMINUM ALLOY 5052 BASIC |
| 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 |
|---|---|
| 3-1 1-8-20P | 2/2 Government specification standardization U.S. Government activity |
| MILC7438 | 4/1 Identification reference U.S. Government activity |
NSN 5680-00-686-1040 is a Core Material,cellular,structura, classified under FSC 5680, Miscellaneous Construction Materials. Status: active.
Key specifications for 5680-00-686-1040: Cell Size: 0.125 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; Nondefinitive Spec/std Data: 3.1-1/8-20P TEMPER. 5 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.