The Toggle Arm,dog Assembly,hatch, cataloged under National Stock Number 2040-01-479-1004, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2040-01-479-1004 |
| Item Name | Toggle Arm,dog Assembly,hatch |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Status | ACTIVE |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 10424-16 | 3/2 Design control — primary reference U.S. Government activity |
| 3175554 | D/9 Drawing number reference only U.S. Government activity |
| D-10424-A PC NO.16 | 5/2 Secondary reference U.S. Government activity |
| 32175554 PC 6 | 5/2 Secondary reference U.S. Government activity |
| 58586 | 5/9 Secondary reference Heintz Corp |
| D-10424-A | D/9 Drawing number reference only U.S. Government activity |
NSN 2040-01-479-1004 is a Toggle Arm,dog Assembly,hatch, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 2040-01-479-1015, 2040-01-483-4771. Verify interchangeability with system specifications before substitution.
Key specifications for 2040-01-479-1004: Overall Length: 12.000 INCHES NOMINAL IN; Special Features: E/I 26"6 DOG WATERTIGHT DOOR; End Item Identification: MCH CLASS SHIP; Material: STEEL. 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.