The Assembly Lock, cataloged under National Stock Number 2040-01-641-4788, 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. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2040-01-641-4788 |
| Primary Part Number | H547-0001-H5471905-A3D3 |
| Item Name | Assembly Lock |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| H547-0001-H5471905-A3D3 | Naval Inventory Control Point Mechanicsburg (USA) |
| 7384258-A3D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| H547-1905-A3D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| 167-7384258-A3D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| H547-001-A3D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| 7384258-H5471905-A3D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 167-7384258-A3 | 3/1 Design control — primary reference Naval Sea Systems Command |
| 7383858-H5471905-A3D4 | 3/1 Design control — primary reference Naval Sea Systems Command |
| 7384258-H5471905-A3 | 3/1 Design control — primary reference Naval Sea Systems Command |
| H547-0001-H5471905-A3 | 3/1 Design control — primary reference U.S. Government activity |
| H547-1905-A3 | 3/1 Design control — primary reference U.S. Government activity |
| H547-001-A3 | 3/1 Design control — primary reference U.S. Government activity |
| 7384258-A3 | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 2040-01-641-4788 is a Assembly Lock, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-641-4788 has 6 manufacturer part numbers on file: H547-0001-H5471905-A3D3 (Naval Inventory Control Point Mechanicsburg), 7384258-A3D4 (Naval Inventory Control Point Mechanicsburg), H547-1905-A3D4 (Naval Inventory Control Point Mechanicsburg), 167-7384258-A3D4 (Naval Inventory Control Point Mechanicsburg), H547-001-A3D4 (Naval Inventory Control Point Mechanicsburg) and 1 more.
1 possible match (shared part number, not a government interchangeability claim): 2540-01-659-7798. Verify interchangeability with system specifications before substitution.
Key specifications for H547-0001-H5471905-A3D3: Criticality Code Justification: FEAT; Special Features: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS. 1 specification is 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.
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.