PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

401-BPump Assy-Fluid Met

Weldon Tool Co the · NSN 1650-00-486-5058 · FSC 1650 · No Item Name Available
Verified by PartsTable
NSN 1650-00-486-5058 — this item is cataloged by the U.S. Government under National Stock Number 1650-00-486-5058. Primary manufacturer part number: 401-B.
Features
  • Pump Assy-Fluid Met — FSC 1650
  • 1 verified cross-reference
  • Primary manufacturer: Weldon Tool Co the
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump Assy-Fluid Met, cataloged under National Stock Number 1650-00-486-5058, is classified within Federal Supply Class 1650 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Weldon Tool Co the. 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.

Catalog Facts
Item NamePump Assy-Fluid Met
FSC / FSG1650 — No Item Name Available (FSG 16)
ManufacturersWeldon Tool Co the (CAGE 64560)
Technical Specifications
ParameterValue
NSN1650-00-486-5058
Primary Part Number401-B
Item NamePump Assy-Fluid Met
FSC / FSG1650 / 16 — No Item Name Available
ManufacturerWeldon Tool Co the
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6250-00-026-4780307057 INTERCHANGEABLE
Lampholder
Chrysler Realty Company Llc Dba Daimler Chrysler
5330-00-188-8275101015PC326 INTERCHANGEABLE
Gasket
Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions
3825-00-579-8780 INTERCHANGEABLE
Sweeper,battery Powered
6625-00-799-9001401B INTERCHANGEABLE
Oscilloscope
Bae Systems Information and Electronic Systems Integration Inc.
2910-01-170-0830ST35486 INTERCHANGEABLE
Filter,fluid
Toro Company (the) Dba the Toro Co Div Commercial
6680-01-315-9237401B INTERCHANGEABLE
Calibrator,accelerometer
Trig-Tek, Incorporated
Cross-Reference Index
Part NumberManufacturer
401-B Weldon Tool Co the (USA)
Related Parts
6250-00-026-4780INTERCHANGEABLE
LAMPHOLDER
307057
5330-00-188-8275INTERCHANGEABLE
GASKET
101015PC326
3825-00-579-8780INTERCHANGEABLE
SWEEPER,BATTERY POWERED
6625-00-799-9001INTERCHANGEABLE
OSCILLOSCOPE
401B
2910-01-170-0830INTERCHANGEABLE
FILTER,FLUID
ST35486
6680-01-315-9237INTERCHANGEABLE
CALIBRATOR,ACCELEROMETER
401B

Frequently Asked Questions

What is NSN 1650-00-486-5058?

NSN 1650-00-486-5058 is a Pump Assy-Fluid Met, manufactured by Weldon Tool Co the, classified under FSC 1650 (No Item Name Available). Status: active.

What are the part numbers for NSN 1650-00-486-5058?

NSN 1650-00-486-5058 has 1 cross-referenced part number: 401-B (Weldon Tool Co the).

What NSN replaces 1650-00-486-5058?

There are 6 known substitutes for 1650-00-486-5058: 6250-00-026-4780, 5330-00-188-8275, 3825-00-579-8780 and 3 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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