The Middle Strongback Cover, cataloged under National Stock Number 2040-01-560-8809, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 3 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2040-01-560-8809 |
| Primary Part Number | 7648329-1 |
| Item Name | Middle Strongback Cover |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Color | BLACK |
| Surface Treatment | PLASTIC |
| Material | GLASS FIBER AND RESIN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7648329-1 PRIMARY | Naval Sea Systems Command (USA) |
NSN 2040-01-560-8809 is a Middle Strongback Cover, manufactured by Naval Sea Systems Command, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-560-8809 has 1 manufacturer part number on file: 7648329-1 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 2040-01-688-0848. Verify interchangeability with system specifications before substitution.
Key specifications for 7648329-1: Overall Height: 6.650 INCHES NOMINAL IN; Overall Length: 60.470 INCHES MINIMUM AND 60.530 INCHES MAXIMUM IN; Overall Width: 8.470 INCHES MINIMUM AND 8.530 INCHES MAXIMUM IN; Color: BLACK. 3 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 2040-01-560-8809 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.