The Penetration Assy, cataloged under National Stock Number 2040-01-640-6740, 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 Inventory Control Point Mechanicsburg. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Penetration Assy |
| FSC / FSG | 2040 — Marine Hardware and Hull Items (FSG 20) |
| Manufacturers | Naval Inventory Control Point Mechanicsburg (CAGE 03950) |
| Parameter | Value |
|---|---|
| NSN | 2040-01-640-6740 |
| Primary Part Number | 596-7411118-A1L1 |
| Item Name | Penetration Assy |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 596-7411118-A1L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| B541-7000-14L1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| B541-7040-A1L1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| B541-7000-14 | 5/1 Secondary reference U.S. Government activity |
| B541-7040-A1 | 5/1 Secondary reference U.S. Government activity |
| 596-7411118-A1 | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 2040-01-640-6740 is a Penetration Assy, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-640-6740 has 1 manufacturer part number on file: 596-7411118-A1L1 (Naval Inventory Control Point Mechanicsburg).
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 2040-01-640-6740 has DEMIL Code D. 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.