The Blower,air Barrier, cataloged under National Stock Number 4140-01-421-4045, is classified within Federal Supply Class 4140 (Fans, Air Circulators, and Blower Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-421-4045 |
| Item Name | Blower,air Barrier |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Status | ACTIVE |
| Phase | THREE |
| Frequency Rating | 50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM |
| Material | STEEL |
| Voltage Rating | 200.0 VOLTS NOMINAL |
| 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 |
|---|---|
| G494019-1 | 5/9 Secondary reference Raytheon Company Div Corp |
| 035179000 | 3/2 Design control — primary reference U.S. Government activity |
| 035179 | 5/9 Secondary reference U.S. Government activity |
| G494019-1 | 7/2 Vendor item drawing reference Raytheon Company Dba Raytheon Co |
| BT2914B7-1 | 5/9 Secondary reference Schenck Pegasus Corporation |
NSN 4140-01-421-4045 is a Blower,air Barrier, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
Key specifications for 4140-01-421-4045: Overall Height: 6.160 INCHES NOMINAL IN; Phase: THREE; Overall Length: 6.690 INCHES NOMINAL IN; Overall Width: 9.240 INCHES NOMINAL IN. 4 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.