The Terminal,ventilation Duct, cataloged under National Stock Number 2040-01-591-2957, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2040-01-591-2957 |
| Item Name | Terminal,ventilation Duct |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| 401-7313046ASSY89ITEM1805 | 5/1 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| AVK64SS6 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| AVK64SS6 | 3/1 Design control — primary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| AVK64SS6 | 5/1 Secondary reference Hoffman Engineering Co Div of Federal Cartridge Corp |
NSN 2040-01-591-2957 is a Terminal,ventilation Duct, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
Key specifications for 2040-01-591-2957: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. 2 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 2040-01-591-2957 has DEMIL Code F. 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.