The Core Material,cellular,structura, cataloged under National Stock Number 5680-00-926-4648, is classified within Federal Supply Class 5680 (Miscellaneous Construction Materials) of the Construction and Building Materials group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 5680-00-926-4648 |
| Primary Part Number | AMSC7438 3.1-3/16-10(5052N)CL2 |
| Item Name | Core Material,cellular,structura |
| FSC / FSG | 5680 / 56 — Miscellaneous Construction Materials |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Cell Size | 0.188 IN. IN |
| Cell Perforation | INCLUDED |
| 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 | 0.250 INCHES NOMINAL IN |
| Designed Transverse Direction Dimension | 12.000 IN. IN |
| Nondefinitive Spec/std Data | B GRADE AND 2 CLASS |
| Maximum Service Temp Limit | 350.0 DEG FAHRENHEIT |
| Material | ALUMINUM ALLOY 5052 BASIC |
| Designed Ribbon Direction Dimension | 12.000 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 |
| Part Number | Manufacturer |
|---|---|
| AMSC7438 3.1-3/16-10(5052N)CL2 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| SAE-AMS-C-7438 GRBCL2 | 5/2 Secondary reference U.S. Government activity |
| MIL-C-7438 GRBCL2 | 5/9 Secondary reference U.S. Government activity |
| MIL-C-7438 | 5/9 Secondary reference U.S. Government activity |
| SAE-AMS-C-7438 | 3/1 Design control — primary reference Sae International Dba Sae International |
NSN 5680-00-926-4648 is a Core Material,cellular,structura, manufactured by Sae International Dba Sae International, classified under FSC 5680, Miscellaneous Construction Materials. Status: active.
NSN 5680-00-926-4648 has 1 manufacturer part number on file: AMSC7438 3.1-3/16-10(5052N)CL2 (Sae International Dba Sae International).
4 possible matches (shared part number, not a government interchangeability claim): 5680-00-926-4649, 5680-00-926-4650, 5680-00-926-4651. Verify interchangeability with system specifications before substitution.
Key specifications for AMSC7438 3.1-3/16-10(5052N)CL2: Cell Size: 0.188 IN. IN; Cell Perforation: INCLUDED; 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. 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.