PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51650Vane,pump,rotary

Waterous Company · NSN 4320-01-126-0263 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-126-0263 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-126-0263. Primary manufacturer part number: 51650.
Features
  • Vane,pump,rotary — FSC 4320
  • Motor-Pump Design Control Activity: 79218
  • 1 verified cross-reference
  • Primary manufacturer: Waterous Company
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Vane,pump,rotary, cataloged under National Stock Number 4320-01-126-0263, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Waterous Company. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN4320-01-126-0263
Primary Part Number51650
Item NameVane,pump,rotary
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerWaterous Company
StatusACTIVE
Motor-Pump Design Control Activity79218
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5940-00-150-4490 INTERCHANGEABLE
Terminal Board
3110-00-156-8454F 2431-23 INTERCHANGEABLE
Ring,bearing,inner
American Society for Testing and Materials Dba Astm International
5210-00-255-7564T436.1XRL-5 INTERCHANGEABLE
Caliper,micrometer,outside
L.s. Starrett Company (the) Div Tool Division
5905-00-763-448751650 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
6625-01-290-4852CJ0508-001 INTERCHANGEABLE
Adapter,test
Northrop Grumman Corp Electronic Systems Defensive System Div
2940-01-443-950351650 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
Cross-Reference Index
Part NumberManufacturer
51650 PRIMARY Waterous Company (USA)
Related Parts
5940-00-150-4490INTERCHANGEABLE
TERMINAL BOARD
3110-00-156-8454INTERCHANGEABLE
RING,BEARING,INNER
F 2431-23
5210-00-255-7564INTERCHANGEABLE
CALIPER,MICROMETER,OUTSIDE
T436.1XRL-5
5905-00-763-4487INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
51650
6625-01-290-4852INTERCHANGEABLE
ADAPTER,TEST
CJ0508-001
2940-01-443-9503INTERCHANGEABLE
FILTER ELEMENT,FLUID
51650

Frequently Asked Questions

What is NSN 4320-01-126-0263?

NSN 4320-01-126-0263 is a Vane,pump,rotary, manufactured by Waterous Company, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-126-0263?

NSN 4320-01-126-0263 has 1 cross-referenced part number: 51650 (Waterous Company).

What NSN replaces 4320-01-126-0263?

There are 6 known substitutes for 4320-01-126-0263: 5940-00-150-4490, 3110-00-156-8454, 5210-00-255-7564 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51650?

Key specifications for 51650: Motor-Pump Design Control Activity: 79218. 1 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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