The Fan,ventilating, cataloged under National Stock Number 4140-01-526-2575, is classified within Federal Supply Class 4140 (Fans, Air Circulators, and Blower Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Evac North America Inc. Government technical data includes 6 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-526-2575 |
| Primary Part Number | 5700031-511 |
| Item Name | Fan,ventilating |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Evac North America Inc |
| Status | ACTIVE |
| Inclosure Type | FULLY INCLOSED |
| Flow Direction | OUTWARD |
| Style Designator | FIXED |
| Material | PLASTIC OVERALL |
| Prime Mover Type | ELECTRIC MOTOR |
| Prime Mover Drive Shaft Bearing Type | BALL |
| 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 |
|---|---|
| 5700031 ITEM NO 51A | Evac North America Inc (USA) |
| 5700031-511 PRIMARY | Evac North America Inc (USA) |
| Reference | Meaning |
|---|---|
| 5700031 ITEM NO 51A | 5/9 Secondary reference Envirovac Inc Dba Monogram Systems-Rockford Div |
| 5700031-511 | 5/9 Secondary reference Envirovac Inc Dba Monogram Systems-Rockford Div |
NSN 4140-01-526-2575 is a Fan,ventilating, manufactured by Evac North America Inc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-526-2575 has 2 manufacturer part numbers on file: 5700031 ITEM NO 51A (Evac North America Inc), 5700031-511 (Evac North America Inc).
Key specifications for 5700031-511: Inclosure Type: FULLY INCLOSED; Flow Direction: OUTWARD; Style Designator: FIXED; Part Name Assigned by Controlling Agency: SPARE PARTS-4" SEWAGE PUMP; MODEL 5.5 / QSH101-GD (DOUBLE SEAL). 6 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.