FSC 4140 — Fans, Air Circulators, and Blower Equipment · FSG 41 — Refrigeration, AC, and Air Circulating Equipment
Government record, cited
Also searched as4140-01-690-4700 ·
4140016904700 ·
NIIN 016904700 ·
01-690-4700 ·
FSC 4140 Fans, Air Circulators, and Blower Equipment · 253K763 · 253K763G01
Nearby stock numbers← 4140-01-690-4685 Guard, Fan Impeller
·
4140-01-690-4713 Housing, Centrifugal Fan →
Features
Guard,fan Impeller — FSC 4140
Identification
NSN: 4140-01-690-4700
NIIN: 016904700
FSC: 4140 — Fans, Air Circulators, and Blower Equipment
FSG: 41 — Refrigeration, AC, and Air Circulating Equipment
General Description
The Guard,fan Impeller, cataloged under National Stock Number 4140-01-690-4700, is classified within Federal Supply Class 4140 (Fans, Air Circulators, and Blower Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
Guard,fan Impeller
FSC / FSG
4140 — Fans, Air Circulators, and Blower Equipment (FSG 41)
Technical Specifications
Parameter
Value
NSN
4140-01-690-4700
Item Name
Guard,fan Impeller
FSC / FSG
4140 / 41 — Fans, Air Circulators, and Blower Equipment
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 Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5340-01-690-4911253K763H05POSSIBLE MATCH
STOP,MECHANICAL
Possible match (shared part number)Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
4710-01-690-5185253K763H03POSSIBLE MATCH
TUBE,METALLIC
Possible match (shared part number)Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5340-01-690-6883253K763H04POSSIBLE MATCH
BRACKET,MULTIPLE ANGLE
Possible match (shared part number)Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
4710-01-691-1485253K763H02POSSIBLE MATCH
TUBE,METALLIC
Possible match (shared part number)Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
253K763
D/9Drawing number reference only
U.S. Government activity
253K763G01
3/2Design control — primary reference
U.S. Government activity
Related Parts
5340-01-690-4911POSSIBLE MATCH
STOP,MECHANICAL
253K763H05
4710-01-690-5185POSSIBLE MATCH
TUBE,METALLIC
253K763H03
5340-01-690-6883POSSIBLE MATCH
BRACKET,MULTIPLE ANGLE
253K763H04
4710-01-691-1485POSSIBLE MATCH
TUBE,METALLIC
253K763H02
Frequently Asked Questions
What is NSN 4140-01-690-4700?
NSN 4140-01-690-4700 is a Guard,fan Impeller, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
What NSN replaces 4140-01-690-4700?
4 possible matches (shared part number, not a government interchangeability claim): 5340-01-690-4911, 4710-01-690-5185, 5340-01-690-6883. Verify interchangeability with system specifications before substitution.
Is NSN 4140-01-690-4700 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.