PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1278-2Fan,centrifugal

Rotron Incorporated · NSN 4140-01-432-3808 · FSC 4140 · No Item Name Available
Verified by PartsTable
NSN 4140-01-432-3808 — this item is cataloged by the U.S. Government under National Stock Number 4140-01-432-3808. Primary manufacturer part number: 1278-2.
Features
  • Fan,centrifugal — FSC 4140
  • Frequency in Hertz: 50.0 AND 400.0
  • Rotation Direction for Which Designed: CLOCKWISE
  • Voltage in Volts and Current Type: 115.0 AC
  • Prime Mover Type: ELECTRIC MOTOR
  • 2 verified cross-references
  • Primary manufacturer: Rotron Incorporated
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Fan,centrifugal, cataloged under National Stock Number 4140-01-432-3808, 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 Rotron Incorporated. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4140-01-432-3808
Primary Part Number1278-2
Item NameFan,centrifugal
FSC / FSG4140 / 41 — No Item Name Available
ManufacturerRotron Incorporated
StatusACTIVE
Frequency in Hertz50.0 AND 400.0
Rotation Direction for Which DesignedCLOCKWISE
Voltage in Volts and Current Type115.0 AC
Prime Mover TypeELECTRIC MOTOR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5360-00-072-223212782 INTERCHANGEABLE
Spring,spiral,torsion
Admiral Filter Company Llc
5307-00-371-613412782 INTERCHANGEABLE
Stud,ball
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
1270-00-512-7028 INTERCHANGEABLE
Cover,electrical Eq
5360-00-759-698712782 INTERCHANGEABLE
Spring,helical,compression
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5962-01-007-001712782 INTERCHANGEABLE
Microcircuit,linear
Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp
5935-01-116-98841250-0080 INTERCHANGEABLE
Adapter,connector
Keysight Technologies Inc
5360-01-283-651212782 INTERCHANGEABLE
Spring,helical,compression
Itw Food Equipment Group Llc Dba Hobart Service
5305-01-360-032612782 INTERCHANGEABLE
Screw,machine
DP Manufacturing Inc.
4730-01-374-69091278-2 INTERCHANGEABLE
Fitting,lubrication
Palfinger Marine Usa, Llc
5355-01-411-184212782 INTERCHANGEABLE
Knob
Trimble Military and Advanced Systems, Inc. Dba Trimble Navigation
Cross-Reference Index
Part NumberManufacturer
A31U29710-1 Northrop Grumman Systems Corporation (USA)
1278-2 PRIMARY Rotron Incorporated (USA)
Related Parts
5360-00-072-2232INTERCHANGEABLE
SPRING,SPIRAL,TORSION
12782
5307-00-371-6134INTERCHANGEABLE
STUD,BALL
12782
1270-00-512-7028INTERCHANGEABLE
COVER,ELECTRICAL EQ
5360-00-759-6987INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
12782
5962-01-007-0017INTERCHANGEABLE
MICROCIRCUIT,LINEAR
12782
5935-01-116-9884INTERCHANGEABLE
ADAPTER,CONNECTOR
1250-0080
5360-01-283-6512INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
12782
5305-01-360-0326INTERCHANGEABLE
SCREW,MACHINE
12782
4730-01-374-6909INTERCHANGEABLE
FITTING,LUBRICATION
1278-2
5355-01-411-1842INTERCHANGEABLE
KNOB
12782

Frequently Asked Questions

What is NSN 4140-01-432-3808?

NSN 4140-01-432-3808 is a Fan,centrifugal, manufactured by Rotron Incorporated, classified under FSC 4140 (No Item Name Available). Status: active.

What are the part numbers for NSN 4140-01-432-3808?

NSN 4140-01-432-3808 has 2 cross-referenced part numbers: A31U29710-1 (Northrop Grumman Systems Corporation), 1278-2 (Rotron Incorporated).

What NSN replaces 4140-01-432-3808?

There are 10 known substitutes for 4140-01-432-3808: 5360-00-072-2232, 5307-00-371-6134, 1270-00-512-7028 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1278-2?

Key specifications for 1278-2: Frequency in Hertz: 50.0 AND 400.0; Special Features: EMI, OPERATED BY PERSONNEL WEARING CHEMICAL,BIOLOGICAL,RADIOLOGICAL (CBR) ENSEMBLE; USED IN PORTABLE ISO SHELTER; Rotation Direction for Which Designed: CLOCKWISE; Voltage in Volts and Current Type: 115.0 AC. 5 total characteristics are documented in the Federal Logistics Information System.

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