The Ventilator,air Circulating, cataloged under National Stock Number 2040-01-420-0281, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. The manufacturer of record is Tomkins Industries, Inc Dba Ruskin Manufacturing. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 2040-01-420-0281 |
| Primary Part Number | 50-001104-20D CHG C ITEM 21 |
| Item Name | Ventilator,air Circulating |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Tomkins Industries, Inc Dba Ruskin Manufacturing |
| 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 |
|---|---|
| 50-001104-20D CHG C ITEM 21 PRIMARY | Tomkins Industries, Inc Dba Ruskin Manufacturing (USA) |
| Reference | Meaning |
|---|---|
| CD80VG1 4X1 VERTICAL | 5/1 Secondary reference Tomkins Industries, Inc Dba Ruskin Manufacturing |
| 50-001104-20D | D/9 Drawing number reference only Tomkins Industries, Inc Dba Ruskin Manufacturing |
NSN 2040-01-420-0281 is a Ventilator,air Circulating, manufactured by Tomkins Industries, Inc Dba Ruskin Manufacturing, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-420-0281 has 1 manufacturer part number on file: 50-001104-20D CHG C ITEM 21 (Tomkins Industries, Inc Dba Ruskin Manufacturing).
3 possible matches (shared part number, not a government interchangeability claim): 2040-01-420-1266, 2040-01-420-2836, 3040-01-439-9783. Verify interchangeability with system specifications before substitution.
Key specifications for 50-001104-20D CHG C ITEM 21: Overall Height: 34.750 INCHES NOMINAL IN; Overall Width: 124.000 INCHES NOMINAL IN; 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.