PartsTable TECHNICAL DATA SHEET
NSN 4140-01-690-4685Government record, cited

Guard, Fan Impeller4140-01-690-4685

NSN 4140-01-690-4685 · NIIN 016904685 · Part number PFA4730
Allied Electronics, Inc · FSC 4140 — Fans, Air Circulators, and Blower Equipment · FSG 41 — Refrigeration, AC, and Air Circulating Equipment · CAGE 01DE4
Government record, cited
NSN 4140-01-690-4685 — this item is cataloged by the U.S. Government under National Stock Number 4140-01-690-4685. Manufacturer of record part number: PFA4730.
Also searched as  4140-01-690-4685 · 4140016904685 · NIIN 016904685 · 01-690-4685 · FSC 4140 Fans, Air Circulators, and Blower Equipment · CAGE 01DE4 · PFA4730
Nearby stock numbers  ·
Features
  • Guard,fan Impeller — FSC 4140
  • Shape: SQUARE
  • 1 manufacturer part number on file
  • Manufacturer of record: Allied Electronics, Inc
Identification
  • NSN: 4140-01-690-4685
  • NIIN: 016904685
  • FSC: 4140 — Fans, Air Circulators, and Blower Equipment
  • FSG: 41 — Refrigeration, AC, and Air Circulating Equipment
  • Primary part number: PFA4730
  • Manufacturer: Allied Electronics, Inc
General Description

The Guard,fan Impeller, cataloged under National Stock Number 4140-01-690-4685, 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 Allied Electronics, Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4140-01-690-4685
Primary Part NumberPFA4730
Item NameGuard,fan Impeller
FSC / FSG4140 / 41 — Fans, Air Circulators, and Blower Equipment
ManufacturerAllied Electronics, Inc
StatusACTIVE
ShapeSQUARE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
PFA4730 PRIMARY Allied Electronics, Inc (USA)
No interchangeability data on file.
Other items in FSC 4140 — Fans, Air Circulators, and Blower Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4140-00-000-0082
IMPELLER,FAN,AXIAL
4140-00-001-1517
FAN,CENTRIFUGAL
4140-00-001-1536
FAN,VENTILATING
4140-00-001-1537
4140-00-001-1537 · Item name not on file
4140-00-001-3930
4140-00-001-3930 · Item name not on file
4140-00-001-6464
4140-00-001-6464 · Item name not on file
4140-00-001-6874
4140-00-001-6874 · Item name not on file
4140-00-001-6875
4140-00-001-6875 · Item name not on file

Frequently Asked Questions

What is NSN 4140-01-690-4685?

NSN 4140-01-690-4685 is a Guard,fan Impeller, manufactured by Allied Electronics, Inc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.

What part numbers are listed for NSN 4140-01-690-4685?

NSN 4140-01-690-4685 has 1 manufacturer part number on file: PFA4730 (Allied Electronics, Inc).

What are the specifications of PFA4730?

Key specifications for PFA4730: Shape: SQUARE; Special Features: MATERIAL FOR GUARD AND RETAINER IS BLACK PLASTIC;DESCRIPTION 30 PORES PER INCH FILTER;; Part Name Assigned by Controlling Agency: FILTER/GUARD SQUARE FANS. 1 specification is documented in the U.S. Government catalog.

Is NSN 4140-01-690-4685 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.
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