The Guard,fan Impeller, cataloged under National Stock Number 4140-01-461-5958, 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 National Oilwell Varco Inc Dba National Oilwell. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Guard,fan Impeller |
| FSC / FSG | 4140 — Fans, Air Circulators, and Blower Equipment (FSG 41) |
| Manufacturers | National Oilwell Varco Inc Dba National Oilwell (CAGE 52142) |
| Parameter | Value |
|---|---|
| NSN | 4140-01-461-5958 |
| Primary Part Number | 30S50045-0102 |
| Item Name | Guard,fan Impeller |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | National Oilwell Varco Inc Dba National Oilwell |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 30S50045-0102 PRIMARY | National Oilwell Varco Inc Dba National Oilwell (USA) |
| Reference | Meaning |
|---|---|
| 30S50045-0102 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 30S50045-0102 | C/1 Advisory reference — outside the item-of-supply concept Louis Allis |
| 30S50045-0102 | 5/9 Secondary reference Louis Allis Co the This Company Has Gone Bankrupt and Has Been Purchased by 3 Companies |
NSN 4140-01-461-5958 is a Guard,fan Impeller, manufactured by National Oilwell Varco Inc Dba National Oilwell, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-461-5958 has 1 manufacturer part number on file: 30S50045-0102 (National Oilwell Varco Inc Dba National Oilwell).
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.