The Dog Assembly,hatch, cataloged under National Stock Number 2040-01-496-8252, 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 Sea Systems Command. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2040-01-496-8252 |
| Primary Part Number | 124-1678549 PC 125 |
| Item Name | Dog Assembly,hatch |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Naval Sea Systems Command |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 124-1678533 ASSY 89 | Naval Sea Systems Command (USA) |
| 124-1678549 PC 125 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 124-1678549 | D/9 Drawing number reference only Naval Sea Systems Command |
| 124-1678533 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 2040-01-496-8252 is a Dog Assembly,hatch, manufactured by Naval Sea Systems Command, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-496-8252 has 2 manufacturer part numbers on file: 124-1678533 ASSY 89 (Naval Sea Systems Command), 124-1678549 PC 125 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 3120-01-496-8812. Verify interchangeability with system specifications before substitution.
Key specifications for 124-1678549 PC 125: Overall Height: 2.750 INCHES NOMINAL IN; Overall Length: 13.375 INCHES NOMINAL IN; Overall Width: 4.875 INCHES NOMINAL IN; Special Features: DOG ASSEMBLY CONSISTS OF P/N 124-1678533-2 DOG ARM AND P/N 124-1678533-28 DOG ASSEMBLED TOGETHER.. 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.