The Fan,ventilating, cataloged under National Stock Number 4140-01-591-0599, 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 New Hampshire Ball Bearings Inc Div Precision Division. Government technical data includes 7 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-591-0599 |
| Primary Part Number | 4715MS-22T-B50-B00 |
| Item Name | Fan,ventilating |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | New Hampshire Ball Bearings Inc Div Precision Division |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| Flow Direction | OUTWARD |
| Drive Type | DIRECT |
| Material | ALUMINUM HOUSING |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Air Flow Rate | 102.0 CUBIC FEET PER MINUTE MAXIMUM |
| 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 |
|---|---|
| 4715MS-22T-B50-B00 PRIMARY | New Hampshire Ball Bearings Inc Div Precision Division (USA) |
| Reference | Meaning |
|---|---|
| 4715MS | D/9 Drawing number reference only New Hampshire Ball Bearings Inc Div Precision Division |
NSN 4140-01-591-0599 is a Fan,ventilating, manufactured by New Hampshire Ball Bearings Inc Div Precision Division, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-591-0599 has 1 manufacturer part number on file: 4715MS-22T-B50-B00 (New Hampshire Ball Bearings Inc Div Precision Division).
Key specifications for 4715MS-22T-B50-B00: Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S); Flow Direction: OUTWARD; Drive Type: DIRECT; Material: ALUMINUM HOUSING. 7 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.