The Fan,tubeaxial, cataloged under National Stock Number 4140-01-397-0135, 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 Schroff Inc Dba Pentair Technical Products. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4140-01-397-0135 |
| Primary Part Number | 20897-826 |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Schroff Inc Dba Pentair Technical Products |
| Status | ACTIVE |
| Length | 1.500 INCHES NOMINAL IN |
| Criticality Code Justification | FEAT |
| Style Designator | FIXED |
| Height | 4.690 INCHES NOMINAL IN |
| Width | 4.690 INCHES NOMINAL IN |
| Rotation Direction for Which Designed | CLOCKWISE |
| Air Flow Rate | 100.0 CUBIC FEET PER MINUTE NOMINAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 20897-826 PRIMARY | Schroff Inc Dba Pentair Technical Products (USA) |
| Reference | Meaning |
|---|---|
| 69-00656-001 | 5/9 Secondary reference Raytheon Company |
NSN 4140-01-397-0135 is a Fan,tubeaxial, manufactured by Schroff Inc Dba Pentair Technical Products, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-397-0135 has 1 manufacturer part number on file: 20897-826 (Schroff Inc Dba Pentair Technical Products).
Key specifications for 20897-826: Length: 1.500 INCHES NOMINAL IN; Criticality Code Justification: FEAT; Style Designator: FIXED; Height: 4.690 INCHES NOMINAL IN. 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.