PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

641326Pump,rotary

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 4320-00-135-9635 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-135-9635 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-135-9635. Primary manufacturer part number: 641326.
Features
  • Pump,rotary — FSC 4320
  • Operation Method: POWERED
  • Media for Which Designed: HYDROCARBON FUELS AND OILS
  • Volume Control Type: ROTARY
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY UNITED AIRCRAFT CORP DWG NO. 641326
  • 2 verified cross-references
  • Primary manufacturer: Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump,rotary, cataloged under National Stock Number 4320-00-135-9635, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-135-9635
Primary Part Number641326
Item NamePump,rotary
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Operation MethodPOWERED
Media for Which DesignedHYDROCARBON FUELS AND OILS
Volume Control TypeROTARY
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY UNITED AIRCRAFT CORP DWG NO. 641326
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5133-00-222-9466 INTERCHANGEABLE
Drill,twist
4820-00-262-73920529 3/8 INTERCHANGEABLE
Valve,globe
Fairbanks Co the
6145-00-471-0431 INTERCHANGEABLE
Cable,special Purpose,electrical
3030-01-065-4773 INTERCHANGEABLE
Belt,round
1680-01-306-4997 INTERCHANGEABLE
System Control Unit
1680-01-372-2579 INTERCHANGEABLE
System Control Unit
5950-01-597-217750438 INTERCHANGEABLE
Transformer,power
Power Paragon, Inc. Dba Power Magnetics Div Power Magnetics
Cross-Reference Index
Part NumberManufacturer
641326 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
50438 Triumph Engine Control Systems Llc (USA)
Related Parts
5133-00-222-9466INTERCHANGEABLE
DRILL,TWIST
4820-00-262-7392INTERCHANGEABLE
VALVE,GLOBE
0529 3/8
6145-00-471-0431INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
3030-01-065-4773INTERCHANGEABLE
BELT,ROUND
1680-01-306-4997INTERCHANGEABLE
SYSTEM CONTROL UNIT
1680-01-372-2579INTERCHANGEABLE
SYSTEM CONTROL UNIT
5950-01-597-2177INTERCHANGEABLE
TRANSFORMER,POWER
50438

Frequently Asked Questions

What is NSN 4320-00-135-9635?

NSN 4320-00-135-9635 is a Pump,rotary, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-135-9635?

NSN 4320-00-135-9635 has 2 cross-referenced part numbers: 641326 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 50438 (Triumph Engine Control Systems Llc).

What NSN replaces 4320-00-135-9635?

There are 7 known substitutes for 4320-00-135-9635: 5133-00-222-9466, 4820-00-262-7392, 6145-00-471-0431 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 641326?

Key specifications for 641326: Operation Method: POWERED; Media for Which Designed: HYDROCARBON FUELS AND OILS; Volume Control Type: ROTARY; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY UNITED AIRCRAFT CORP DWG NO. 641326. 4 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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