The Ventilator,deck, cataloged under National Stock Number 2040-00-218-0771, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2040-00-218-0771 |
| Item Name | Ventilator,deck |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Status | ACTIVE |
| Ventilation Closing Device | INCLUDED |
| Integral Mounting Base | NOT INCLUDED |
| Inside Length | 22.250 INCHES NOMINAL IN |
| Insectproof Feature | NOT INCLUDED |
| Waterproof Feature | INCLUDED |
| Ventilator Type | FIXED POSITION |
| Style Designator | MUSHROOM TYPE |
| Deck Plate | NOT INCLUDED |
| Bottom Opening Shape | ROUND |
| Mouth Opening Inside Height | 7.000 INCHES NOMINAL IN |
| Inside Diameter | 24.000 INCHES NOMINAL IN |
| Surface Treatment | ZINC |
| Material | STEEL |
| Below Deck Closing Feature | INCLUDED |
| Mouth Opening Inside Diameter | 43.000 INCHES NOMINAL IN |
| Mouth Opening Shape | ROUND |
| 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 |
|---|---|
| S3801-860376ANDS3801-860377 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2040-00-218-0771 is a Ventilator,deck, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
Key specifications for 2040-00-218-0771: Overall Height: 56.750 INCHES NOMINAL IN; Ventilation Closing Device: INCLUDED; Integral Mounting Base: NOT INCLUDED; Inside Length: 22.250 INCHES NOMINAL IN. 16 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.