The Core Material,cellular,structura, cataloged under National Stock Number 5680-01-084-3900, is classified within Federal Supply Class 5680 (Miscellaneous Construction Materials) of the Construction and Building Materials group. The manufacturer of record is The Boeing Company. Government technical data includes 12 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5680-01-084-3900 |
| Primary Part Number | BMS8-124 CLASS 4 TYPE 1 GRADE 2 |
| Item Name | Core Material,cellular,structura |
| FSC / FSG | 5680 / 56 — Miscellaneous Construction Materials |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Cell Size | 3/16 IN. IN |
| Cell Perforation | NOT INCLUDED |
| Nominal Density Rating | 2.0 POUNDS PER CUBIC FOOT LBS |
| Maximum Density Rating | 2.2 POUNDS PER CUBIC FOOT LBS |
| Cell Depth | 2.000 INCHES NOMINAL IN |
| Transverse Direction Dimension | 96.000 IN. IN |
| Ribbon Direction Dimension | 48.000 IN. IN |
| Maximum Service Temp Limit | 250.0 DEG FAHRENHEIT |
| Material | PLASTIC COATING |
| Material | PLASTIC POLYAMIDE NYLON BASIC |
| Service Characteristics | HEAT RESISTANT AND 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 |
|---|---|
| BMS8-124 CLASS 4 TYPE 1 GRADE 2 PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| AMS-C-81986 | 3/1 Design control — primary reference Sae International Dba Sae International |
| MIL-C-81986 | 5/9 Secondary reference U.S. Government activity |
| AMS-C-81986 | 5/9 Secondary reference U.S. Government activity |
| HRH 10-3/16-2.0 (2) | 5/9 Secondary reference Northrop Grumman Corp Military Aircraft Systems Div Chandler Site |
NSN 5680-01-084-3900 is a Core Material,cellular,structura, manufactured by The Boeing Company, classified under FSC 5680, Miscellaneous Construction Materials. Status: active.
NSN 5680-01-084-3900 has 1 manufacturer part number on file: BMS8-124 CLASS 4 TYPE 1 GRADE 2 (The Boeing Company).
2 possible matches (shared part number, not a government interchangeability claim): 5680-01-122-8726, 5680-01-202-9230. Verify interchangeability with system specifications before substitution.
Key specifications for BMS8-124 CLASS 4 TYPE 1 GRADE 2: Cell Size: 3/16 IN. IN; Cell Perforation: NOT INCLUDED; Nominal Density Rating: 2.0 POUNDS PER CUBIC FOOT LBS; Maximum Density Rating: 2.2 POUNDS PER CUBIC FOOT LBS. 12 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.