The Hatch,marine, cataloged under National Stock Number 2040-00-554-4052, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2040-00-554-4052 |
| Item Name | Hatch,marine |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Status | ACTIVE |
| Spring Balance Feature | NOT INCLUDED |
| Opening Length | 48.000 INCHES NOMINAL IN |
| Opening Width | 42.000 INCHES NOMINAL IN |
| Test Pressure Rating | 5.0 |
| Coaming Height | 12.000 INCHES NOMINAL IN |
| Rectangular Hatch Hinge Location | SHORT SIDE |
| Nondefinitive Spec/std Data | 2 ASSEMBLY |
| Coaming Thickness | 0.188 INCHES NOMINAL IN |
| Scuttle | INCLUDED |
| Hasp | INCLUDED |
| Operating Location | ABOVE |
| Material | STEEL PANEL |
| Installation Design | RAISED |
| Operating Control Type | INDIVIDUAL DOG |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 805-1624081 | 3/1 Design control — primary reference U.S. Government activity |
| 805-1624081ASSY2 | 5/2 Secondary reference U.S. Government activity |
NSN 2040-00-554-4052 is a Hatch,marine, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 2040-00-554-4053. Verify interchangeability with system specifications before substitution.
Key specifications for 2040-00-554-4052: Spring Balance Feature: NOT INCLUDED; Opening Length: 48.000 INCHES NOMINAL IN; Opening Width: 42.000 INCHES NOMINAL IN; Test Pressure Rating: 5.0. 14 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 2040-00-554-4052 has DEMIL Code Q. 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.