The Core Material,cellular,structura, cataloged under National Stock Number 5680-01-298-1673, is classified within Federal Supply Class 5680 (Miscellaneous Construction Materials) of the Construction and Building Materials group. The manufacturer of record is Hexcel Corp Div Casa Grande Plant. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5680-01-298-1673 |
| Primary Part Number | HFT3/16-4.0-0.986 |
| Item Name | Core Material,cellular,structura |
| FSC / FSG | 5680 / 56 — Miscellaneous Construction Materials |
| Manufacturer | Hexcel Corp Div Casa Grande Plant |
| Status | ACTIVE |
| Cell Size | 3/16 IN. IN |
| Cell Perforation | NOT INCLUDED |
| Nominal Density Rating | 4.0 POUNDS PER CUBIC FOOT LBS |
| Unit Package Quantity | 1 |
| Cell Depth | 0.986 INCHES NOMINAL IN |
| Maximum Service Temp Limit | 325.0 DEG FAHRENHEIT |
| Material | PLASTIC COATING |
| Material | GLASS BASIC |
| Service Characteristics | WATER REPELLENT |
| 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 |
|---|---|
| HFT3/16-4.0-0.986 PRIMARY | Hexcel Corp Div Casa Grande Plant (USA) |
| Reference | Meaning |
|---|---|
| LB0130-136 | 5/1 Secondary reference The Boeing Company Div Legacy Am&m |
| HFT3/16-4.0-0.986 | 5/9 Secondary reference Hexcel Corp |
NSN 5680-01-298-1673 is a Core Material,cellular,structura, manufactured by Hexcel Corp Div Casa Grande Plant, classified under FSC 5680, Miscellaneous Construction Materials. Status: active.
NSN 5680-01-298-1673 has 1 manufacturer part number on file: HFT3/16-4.0-0.986 (Hexcel Corp Div Casa Grande Plant).
Key specifications for HFT3/16-4.0-0.986: Cell Size: 3/16 IN. IN; Cell Perforation: NOT INCLUDED; Nominal Density Rating: 4.0 POUNDS PER CUBIC FOOT LBS; Unit Package Quantity: 1. 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.