The Guard,fan Impeller, cataloged under National Stock Number 4140-01-371-6823, 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 Maradyne Corporation. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-371-6823 |
| Primary Part Number | 53097 |
| Item Name | Guard,fan Impeller |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Maradyne Corporation |
| Status | ACTIVE |
| Overall Diameter | 7.750 INCHES NOMINAL IN |
| Mounting Method | SPRING CLIP |
| Shape | ROUND |
| 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 |
|---|---|
| 53097 PRIMARY | Maradyne Corporation (USA) |
| Reference | Meaning |
|---|---|
| 53015 | 5/9 Secondary reference Maradyne Corporation |
NSN 4140-01-371-6823 is a Guard,fan Impeller, manufactured by Maradyne Corporation, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-371-6823 has 1 manufacturer part number on file: 53097 (Maradyne Corporation).
1 possible match (shared part number, not a government interchangeability claim): 3120-01-617-4382. Verify interchangeability with system specifications before substitution.
Key specifications for 53097: Overall Diameter: 7.750 INCHES NOMINAL IN; Mounting Method: SPRING CLIP; Shape: ROUND. 3 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.