The Blower,defroster,air, cataloged under National Stock Number 2540-00-019-7434, is classified within Federal Supply Class 2540 (Vehicular Furniture and Accessories) of the Vehicular Equipment Components group. The manufacturer of record is Fwd Seagrave Holdings Lp. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2540-00-019-7434 |
| Primary Part Number | SC400 |
| Item Name | Blower,defroster,air |
| FSC / FSG | 2540 / 25 — Vehicular Furniture and Accessories |
| Manufacturer | Fwd Seagrave Holdings Lp |
| Status | ACTIVE |
| General Characteristics Item Description | 7.830 IN.LARGEST DIA; 400 CFM AT 3800 RPM; W/MOTOR,24 V,DC CURRENT V |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| SC400 PRIMARY | Fwd Seagrave Holdings Lp (USA) |
| 531750 | Fwd Seagrave Holdings Lp (USA) |
| SC400 | Timken Aerospace, Inc Dba Torrington Product (USA) |
| SC400-400-11704 | Regal-Beloit Corporation Dba Fasco Group Div Cassville Division (USA) |
| Reference | Meaning |
|---|---|
| 335SC400 | 5/9 Secondary reference Lift Parts Mfg Co Inc Div of Echlin Mfg Co the |
| 335SC400 | C/1 Advisory reference — outside the item-of-supply concept Tvh Parts Co. |
NSN 2540-00-019-7434 is a Blower,defroster,air, manufactured by Fwd Seagrave Holdings Lp, classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
NSN 2540-00-019-7434 has 4 manufacturer part numbers on file: SC400 (Fwd Seagrave Holdings Lp), 531750 (Fwd Seagrave Holdings Lp), SC400 (Timken Aerospace, Inc Dba Torrington Product), SC400-400-11704 (Regal-Beloit Corporation Dba Fasco Group Div Cassville Division).
2 possible matches (shared part number, not a government interchangeability claim): 6620-00-714-6966, 4730-01-680-1074. Verify interchangeability with system specifications before substitution.
Key specifications for SC400: General Characteristics Item Description: 7.830 IN.LARGEST DIA; 400 CFM AT 3800 RPM; W/MOTOR,24 V,DC CURRENT V. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.