The Fan Cycle Control Assembly, cataloged under National Stock Number 4140-01-565-0881, 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 Crispaire Corp Dba Marvair Co. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-565-0881 |
| Primary Part Number | S/03998 |
| Item Name | Fan Cycle Control Assembly |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Crispaire Corp Dba Marvair Co |
| Status | ACTIVE |
| 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 |
|---|---|
| S/03998 PRIMARY | Crispaire Corp Dba Marvair Co (USA) |
| Reference | Meaning |
|---|---|
| A32298664-206 | 5/9 Secondary reference U.S. Government activity |
| A3298664-206 | 5/2 Secondary reference U.S. Government activity |
NSN 4140-01-565-0881 is a Fan Cycle Control Assembly, manufactured by Crispaire Corp Dba Marvair Co, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-565-0881 has 1 manufacturer part number on file: S/03998 (Crispaire Corp Dba Marvair Co).
Key specifications for S/03998: Special Features: DO NOT USE P/N 20175 CAGE 80063 AS LISTED ON DRAWING, IT IS NOT THIS ITEM; P/N 70555 (LISTED IN THE ISIL) IS A REPLACEMENT FOR THIS PART WHERE EVACUATION IS NEEDED ONLY; VARIATION IS P/N S/03998 AND A3298664-206 FAN CYCLE CONTROL; Part Name Assigned by Controlling Agency: FAN CYCLE CONTROL; End Item Identification: AN/GSC-70 (V)1, ISIL. 0 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.