NSN 4140-01-559-4939 · NIIN 015594939 · Part number 15957
Viasys Healthcard · FSC 4140 — Fans, Air Circulators, and Blower Equipment · FSG 41 — Refrigeration, AC, and Air Circulating Equipment · CAGE 3K8A2
Government record, cited
NSN 4140-01-559-4939 — this item is cataloged by the U.S. Government under National Stock Number 4140-01-559-4939. Manufacturer of record part number: 15957.
Also searched as4140-01-559-4939 ·
4140015594939 ·
NIIN 015594939 ·
01-559-4939 ·
FSC 4140 Fans, Air Circulators, and Blower Equipment · CAGE 3K8A2 · 15957
FSC: 4140 — Fans, Air Circulators, and Blower Equipment
FSG: 41 — Refrigeration, AC, and Air Circulating Equipment
Primary part number: 15957
Manufacturer: Viasys Healthcard
General Description
The Fan Assembly,centrifugal, cataloged under National Stock Number 4140-01-559-4939, 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 Viasys Healthcard. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4140-01-559-4939
Primary Part Number
15957
Item Name
Fan Assembly,centrifugal
FSC / FSG
4140 / 41 — Fans, Air Circulators, and Blower Equipment
Manufacturer
Viasys Healthcard
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items2
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
8145-01-627-557515957POSSIBLE MATCH
SHIPPING AND STORAGE CONTAINER,H
Possible match (shared part number)Naval Inventory Control Point
5962-01-659-0407015957-001POSSIBLE MATCH
MICROCIRCUIT,DIGITAL
Possible match (shared part number)Sci Technology, Inc
NSN 4140-01-559-4939 is a Fan Assembly,centrifugal, manufactured by Viasys Healthcard, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
What part numbers are listed for NSN 4140-01-559-4939?
NSN 4140-01-559-4939 has 1 manufacturer part number on file: 15957 (Viasys Healthcard).
What NSN replaces 4140-01-559-4939?
2 possible matches (shared part number, not a government interchangeability claim): 8145-01-627-5575, 5962-01-659-0407. Verify interchangeability with system specifications before substitution.
What are the specifications of 15957?
Key specifications for 15957: End Item Identification: VENTELATOR T-BIRD. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4140-01-559-4939 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.