PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

401CPump Unit,rotary

Weldon Pump Llc · NSN 4320-00-442-6301 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-442-6301 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-442-6301. Primary manufacturer part number: 401C.
Features
  • Pump Unit,rotary — FSC 4320
  • Discharge Connection Type: THREADED INTERNAL
  • Intake Connection Thread Size and Series/type Designator: 0.125-27 NPT
  • Pumping Element Operating Position: HORIZONTAL
  • Voltage in Volts: 27.5
  • Prime Mover Power Rating: 0.013 HORSEPOWER
  • Environmental Protection: DRIPPROOF
  • Operating Speed at Rated Capacity: 12000.0 REVOLUTIONS PER MINUTE
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump Unit,rotary, cataloged under National Stock Number 4320-00-442-6301, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Weldon Pump Llc. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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.

Technical Specifications
ParameterValue
NSN4320-00-442-6301
Primary Part Number401C
Item NamePump Unit,rotary
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerWeldon Pump Llc
StatusACTIVE
Discharge Connection TypeTHREADED INTERNAL
Intake Connection Thread Size and Series/type Designator0.125-27 NPT
Pumping Element Operating PositionHORIZONTAL
Voltage in Volts27.5
Prime Mover Power Rating0.013 HORSEPOWER
Environmental ProtectionDRIPPROOF
Operating Speed at Rated Capacity12000.0 REVOLUTIONS PER MINUTE
Operation Relationship DesignSIMULTANEOUS
Rotary Pump DesignVANE
Inclosure TypeFULLY INCLOSED
Maximum Discharge Flow Rate3.0 GALLONS PER MINUTE
Prime Mover TypeELECTRIC MOTOR
Discharge Connection Thread Size and Series/type Designator0.125-27 NPT
Intake Connection Quantity1
Prime Mover Quantity1
Pump Quantity1
Discharge Pressure5.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING SILICA FUME
Discharge Connection Quantity2
Intake Connection TypeTHREADED INTERNAL
Current TypeDC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5910-00-112-7722 INTERCHANGEABLE
Capacitor,fixed,mica Dielectric
6160-00-510-7578SCDL90967 INTERCHANGEABLE
Battery Box
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5975-00-881-000852C3 1/2-25 INTERCHANGEABLE
Cover,junction Box
Abb Installation Products Inc
5961-00-950-6570 INTERCHANGEABLE
Semiconductor Device,diode
4730-01-510-8354401C INTERCHANGEABLE
Adapter,straight,hose to Gas Fit
Airtech International Inc Dba Airtech International Inc
5895-01-558-9713401C INTERCHANGEABLE
Converter,signal Data
Kramer Electronics
Cross-Reference Index
Part NumberManufacturer
401C PRIMARY Weldon Pump Llc (USA)
400B7 Weldon Tool Co the (USA)
401C Weldon Tool Co the (USA)
Related Parts
5910-00-112-7722INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
6160-00-510-7578INTERCHANGEABLE
BATTERY BOX
SCDL90967
5975-00-881-0008INTERCHANGEABLE
COVER,JUNCTION BOX
52C3 1/2-25
5961-00-950-6570INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
4730-01-510-8354INTERCHANGEABLE
ADAPTER,STRAIGHT,HOSE TO GAS FIT
401C
5895-01-558-9713INTERCHANGEABLE
CONVERTER,SIGNAL DATA
401C

Frequently Asked Questions

What is NSN 4320-00-442-6301?

NSN 4320-00-442-6301 is a Pump Unit,rotary, manufactured by Weldon Pump Llc, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-442-6301?

NSN 4320-00-442-6301 has 3 cross-referenced part numbers: 401C (Weldon Pump Llc), 400B7 (Weldon Tool Co the), 401C (Weldon Tool Co the).

What NSN replaces 4320-00-442-6301?

There are 6 known substitutes for 4320-00-442-6301: 5910-00-112-7722, 6160-00-510-7578, 5975-00-881-0008 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 401C?

Key specifications for 401C: Discharge Connection Type: THREADED INTERNAL; Intake Connection Thread Size and Series/type Designator: 0.125-27 NPT; Pumping Element Operating Position: HORIZONTAL; Voltage in Volts: 27.5. 20 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