PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

021-046978-001Blower,tangential

Chromalox Inc Dba Chromalox Precision Heat and Control, Inc · NSN 4140-01-025-7404 · FSC 4140 · No Item Name Available
Verified by PartsTable
NSN 4140-01-025-7404 — this item is cataloged by the U.S. Government under National Stock Number 4140-01-025-7404. Primary manufacturer part number: 021-046978-001.
Features
  • Blower,tangential — FSC 4140
  • 5 verified cross-references
  • Primary manufacturer: Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Blower,tangential, cataloged under National Stock Number 4140-01-025-7404, is classified within Federal Supply Class 4140 (No Item Name Available) of the Refrigeration, AC, and Air Circulating Equipment group. The primary manufacturer of record is Chromalox Inc Dba Chromalox Precision Heat and Control, Inc. This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameBlower,tangential
FSC / FSG4140 — No Item Name Available (FSG 41)
ManufacturersChromalox Inc Dba Chromalox Precision Heat and Control, Inc (CAGE 65586); Philips Industries Inc (CAGE 35197)
Technical Specifications
ParameterValue
NSN4140-01-025-7404
Primary Part Number021-046978-001
Item NameBlower,tangential
FSC / FSG4140 / 41 — No Item Name Available
ManufacturerChromalox Inc Dba Chromalox Precision Heat and Control, Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3110-00-144-8540113276-17 INTERCHANGEABLE
Bearing,ball,annular
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4730-00-249-2026 INTERCHANGEABLE
Tee,tube
3010-00-894-3029774320 INTERCHANGEABLE
Coupling,shaft,flexible
Lockheed Martin Corporation Div Rms - Mitchel Field
5910-01-172-2950902091-4 INTERCHANGEABLE
Capacitor,fixed,electrolytic
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
6160-01-396-0591T210 INTERCHANGEABLE
Shield,battery Post
Pulsetech Products Corporation
5950-01-416-44169907-2566 INTERCHANGEABLE
Transformer,power
Heeco Transformers Inc
Cross-Reference Index
Part NumberManufacturer
004-118253-38 Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA)
021-046978-001 PRIMARY Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA)
T2-10 Philips Industries Inc (USA)
016777-01 Philips Industries Inc (USA)
046978001 PRIMARY Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA)
Related Parts
3110-00-144-8540INTERCHANGEABLE
BEARING,BALL,ANNULAR
113276-17
4730-00-249-2026INTERCHANGEABLE
TEE,TUBE
3010-00-894-3029INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
774320
5910-01-172-2950INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
902091-4
6160-01-396-0591INTERCHANGEABLE
SHIELD,BATTERY POST
T210
5950-01-416-4416INTERCHANGEABLE
TRANSFORMER,POWER
9907-2566

Frequently Asked Questions

What is NSN 4140-01-025-7404?

NSN 4140-01-025-7404 is a Blower,tangential, manufactured by Chromalox Inc Dba Chromalox Precision Heat and Control, Inc, classified under FSC 4140 (No Item Name Available). Status: active.

What are the part numbers for NSN 4140-01-025-7404?

NSN 4140-01-025-7404 has 5 cross-referenced part numbers: 004-118253-38 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc), 021-046978-001 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc), T2-10 (Philips Industries Inc), 016777-01 (Philips Industries Inc), 046978001 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc).

What NSN replaces 4140-01-025-7404?

There are 6 known substitutes for 4140-01-025-7404: 3110-00-144-8540, 4730-00-249-2026, 3010-00-894-3029 and 3 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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