The Door,metal,marine Structural, cataloged under National Stock Number 2040-01-304-3609, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. The manufacturer of record is Eacco, Inc.. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2040-01-304-3609 |
| Primary Part Number | BM21-1LH |
| Item Name | Door,metal,marine Structural |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Eacco, Inc. |
| Status | ACTIVE |
| Operational Direction | LEFT-HAND |
| Quick Operating Feature | NOT INCLUDED |
| Dog Location | IN DOOR |
| Hasp Location | OUTSIDE |
| Fixed Light | INCLUDED |
| Design Type | WATERTIGHT |
| Opening Length | 54.000 INCHES NOMINAL IN |
| Distance Between Sill and Fixed Light | 5.000 INCHES NOMINAL IN |
| Opening Corner Radius | 8.000 INCHES NOMINAL IN |
| Opening Width | 24.000 INCHES NOMINAL IN |
| Passing Scuttle | NOT INCLUDED |
| Panel Thickness | 0.187 INCHES NOMINAL IN |
| Dog Quantity | 4 |
| Material | ALUMINUM |
| Dog Type | ROTATING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| BM21-1LH | Eacco, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 100CWPB-167-008LH | 3/2 Design control — primary reference U.S. Government activity |
NSN 2040-01-304-3609 is a Door,metal,marine Structural, manufactured by Eacco, Inc., classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-304-3609 has 1 manufacturer part number on file: BM21-1LH (Eacco, Inc.).
Key specifications for BM21-1LH: Operational Direction: LEFT-HAND; Quick Operating Feature: NOT INCLUDED; Dog Location: IN DOOR; Hasp Location: OUTSIDE. 15 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.
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.