The Ventilator,air Circulating, cataloged under National Stock Number 5670-01-254-9271, is classified within Federal Supply Class 5670 (Building Components, Prefabricated) of the Construction and Building Materials group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5670-01-254-9271 |
| Item Name | Ventilator,air Circulating |
| FSC / FSG | 5670 / 56 — Building Components, Prefabricated |
| 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 |
| Reference | Meaning |
|---|---|
| 2533-1 | C/1 Advisory reference — outside the item-of-supply concept Nellcor Puritan Bennett Llc Dba Covidien Div Covidien |
| 2533-1 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5670-01-254-9271 is a Ventilator,air Circulating, classified under FSC 5670, Building Components, Prefabricated. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 9150-01-535-8687. Verify interchangeability with system specifications before substitution.
Key specifications for 5670-01-254-9271: Special Features: ALUMINUM ALLOY,OVERALL H.;1.375 IN.;OVERALL DIA.3.375 IN.;INCLUDES TWO MOUNTING HOLES 0.156 IN.DIA.;AIR INLET DIA.1.438 IN.;AIR OUTLET DIA.1.344 IN.FOR CONTROLING AIR FLOW IN; End Item Identification: AIRCRAFT MODEL HU25A. 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.