PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ORB-191Fan,centrifugal

Ammerman Co Inc · NSN 4140-01-362-2959 · FSC 4140 · No Item Name Available
Verified by PartsTable
NSN 4140-01-362-2959 — this item is cataloged by the U.S. Government under National Stock Number 4140-01-362-2959. Primary manufacturer part number: ORB-191.
Features
  • Fan,centrifugal — FSC 4140
  • Material: STEEL OVERALL
  • Outlet Inside Height: 10.500 INCHES NOMINAL IN
  • Inclosure Type: FULLY INCLOSED
  • Height: 39.438 INCHES NOMINAL IN
  • Prime Mover Type: ELECTRIC MOTOR
  • Outlet Inside Width: 9.375 INCHES NOMINAL IN
  • Prime Mover Drive Shaft Bearing Type: SLEEVE
Applications
  • Applications requiring Steel Overall construction
General Description

The Fan,centrifugal, cataloged under National Stock Number 4140-01-362-2959, 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 Ammerman Co Inc. Government technical data includes 11 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4140-01-362-2959
Primary Part NumberORB-191
Item NameFan,centrifugal
FSC / FSG4140 / 41 — No Item Name Available
ManufacturerAmmerman Co Inc
StatusACTIVE
MaterialSTEEL OVERALL
Outlet Inside Height10.500 INCHES NOMINAL IN
Inclosure TypeFULLY INCLOSED
Height39.438 INCHES NOMINAL IN
Prime Mover TypeELECTRIC MOTOR
Outlet Inside Width9.375 INCHES NOMINAL IN
Prime Mover Drive Shaft Bearing TypeSLEEVE
Rotation Direction for Which DesignedCOUNTERCLOCKWISE
Style DesignatorFIXED, RECTANGULAR OUTLETS
Width33.125 INCHES NOMINAL IN
Length9.375 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4730-00-270-3994139-76 INTERCHANGEABLE
Adapter,straight,pipe to Hose
Mid-State Sales, Inc. Div Defense Products Group
3110-01-172-87787-113100066 INTERCHANGEABLE
Bearing,roller,cylindrical
Mpb Corporation Dba Mpb Corp
5950-01-211-629913976 INTERCHANGEABLE
Reactor
Magnespec Inc
2040-01-730-372813976 INTERCHANGEABLE
Lining,friction
Cepeda Associates, Inc. Dba Cepeda Associates Inc
Cross-Reference Index
Part NumberManufacturer
13976 Zf Industrieantriebe Witten Gmbh (DEU)
ORB-191 PRIMARY Ammerman Co Inc (USA)
Related Parts
4730-00-270-3994INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO HOSE
139-76
3110-01-172-8778INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
7-113100066
5950-01-211-6299INTERCHANGEABLE
REACTOR
13976
2040-01-730-3728INTERCHANGEABLE
LINING,FRICTION
13976

Frequently Asked Questions

What is NSN 4140-01-362-2959?

NSN 4140-01-362-2959 is a Fan,centrifugal, manufactured by Ammerman Co Inc, classified under FSC 4140 (No Item Name Available). Status: active.

What are the part numbers for NSN 4140-01-362-2959?

NSN 4140-01-362-2959 has 2 cross-referenced part numbers: 13976 (Zf Industrieantriebe Witten Gmbh), ORB-191 (Ammerman Co Inc).

What NSN replaces 4140-01-362-2959?

There are 4 known substitutes for 4140-01-362-2959: 4730-00-270-3994, 3110-01-172-8778, 5950-01-211-6299 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ORB-191?

Key specifications for ORB-191: Material: STEEL OVERALL; Outlet Inside Height: 10.500 INCHES NOMINAL IN; Inclosure Type: FULLY INCLOSED; Height: 39.438 INCHES NOMINAL IN. 11 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com