PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21311Impeller,pump,centrifugal

Mohn Frank Houston Inc · NSN 4320-01-340-5349 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-340-5349 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-340-5349. Primary manufacturer part number: 21311.
Features
  • Impeller,pump,centrifugal — FSC 4320
  • Overall Diameter: 145.0 MILLIMETERS NOMINAL MM
  • Material: COPPER ALLOY
  • Mounting Method: KEY
  • Keyway Quantity: 1
  • Rotation Direction for Which Designed: COUNTERCLOCKWISE
  • Keyway Type: STRAIGHT
  • 2 verified cross-references
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
  • Applications requiring Copper Alloy construction
General Description

The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-340-5349, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Mohn Frank Houston Inc. Government technical data includes 6 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-340-5349
Primary Part Number21311
Item NameImpeller,pump,centrifugal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerMohn Frank Houston Inc
StatusACTIVE
Overall Diameter145.0 MILLIMETERS NOMINAL MM
MaterialCOPPER ALLOY
Mounting MethodKEY
Keyway Quantity1
Rotation Direction for Which DesignedCOUNTERCLOCKWISE
Keyway TypeSTRAIGHT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-575-0841213-11 INTERCHANGEABLE
Coil,radio Frequency
Wilco Corp
1680-00-630-860521311 INTERCHANGEABLE
Flight Control Group
Mason Electric Co. Dba Mason Controls
5342-00-634-78025216AP INTERCHANGEABLE
Coupling,clamp,grooved
V I J Corp Div National Utilities Company
2530-00-706-21824121311 INTERCHANGEABLE
Cylinder Assembly,actuating,line
Sicard a Division of Smi-Snowblast Inc Dba Sicard
5999-00-707-00732131-1 INTERCHANGEABLE
Shielding Gasket,electronic
Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division
5355-01-085-999721-3-11 INTERCHANGEABLE
Dial,control
Vishay Sprague Inc
4320-01-325-637221311 INTERCHANGEABLE
Pump,centrifugal
Industrial Technologies and Services Llc
6110-01-407-056821311 INTERCHANGEABLE
Contact Set,motor Starter
Atlas Energy Systems Inc
4810-01-415-206821311-1002-1 INTERCHANGEABLE
Piston,valve
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
4810-01-415-207021311-1005-1 INTERCHANGEABLE
Piston,valve
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Cross-Reference Index
Part NumberManufacturer
21311 PRIMARY Mohn Frank Houston Inc (USA)
21311 Wimoh As (NOR)
Related Parts
5950-00-575-0841INTERCHANGEABLE
COIL,RADIO FREQUENCY
213-11
1680-00-630-8605INTERCHANGEABLE
FLIGHT CONTROL GROUP
21311
5342-00-634-7802INTERCHANGEABLE
COUPLING,CLAMP,GROOVED
5216AP
2530-00-706-2182INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
4121311
5999-00-707-0073INTERCHANGEABLE
SHIELDING GASKET,ELECTRONIC
2131-1
5355-01-085-9997INTERCHANGEABLE
DIAL,CONTROL
21-3-11
4320-01-325-6372INTERCHANGEABLE
PUMP,CENTRIFUGAL
21311
6110-01-407-0568INTERCHANGEABLE
CONTACT SET,MOTOR STARTER
21311
4810-01-415-2068INTERCHANGEABLE
PISTON,VALVE
21311-1002-1
4810-01-415-2070INTERCHANGEABLE
PISTON,VALVE
21311-1005-1
4730-01-415-3260INTERCHANGEABLE
RESTRICTOR,FLUID FLOW
JEDA1875130H
4810-01-415-4994INTERCHANGEABLE
RETAINER,DAMPER,VALVE
21311-1004-1

Frequently Asked Questions

What is NSN 4320-01-340-5349?

NSN 4320-01-340-5349 is a Impeller,pump,centrifugal, manufactured by Mohn Frank Houston Inc, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-340-5349?

NSN 4320-01-340-5349 has 2 cross-referenced part numbers: 21311 (Mohn Frank Houston Inc), 21311 (Wimoh As).

What NSN replaces 4320-01-340-5349?

There are 12 known substitutes for 4320-01-340-5349: 5950-00-575-0841, 1680-00-630-8605, 5342-00-634-7802 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21311?

Key specifications for 21311: Overall Diameter: 145.0 MILLIMETERS NOMINAL MM; Material: COPPER ALLOY; Mounting Method: KEY; Keyway Quantity: 1. 8 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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