PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4371Shaft,shouldered

Weil Pump Co Inc · NSN 3040-00-909-2049 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-00-909-2049 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-909-2049. Primary manufacturer part number: 4371.
Features
  • Shaft,shouldered — FSC 3040
  • Material: NICKEL ALLOY
  • End Similarity: IDENTICAL
  • First End External Thread Length: 0.531 INCHES NOMINAL IN
  • Material Document and Classification: QQ-N-281,CLASS A FED SPEC SINGLE MATERIAL RESPONSE
  • Largest Step Diameter: 1.2490 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
  • First End Style: EXTERNAL THREADED
  • Step Quantity: 8
Applications
  • Applications requiring Nickel Alloy construction
General Description

The Shaft,shouldered, cataloged under National Stock Number 3040-00-909-2049, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Weil Pump Co Inc. Government technical data includes 8 verified specifications, 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-00-909-2049
Primary Part Number4371
Item NameShaft,shouldered
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerWeil Pump Co Inc
StatusACTIVE
MaterialNICKEL ALLOY
End SimilarityIDENTICAL
First End External Thread Length0.531 INCHES NOMINAL IN
Material Document and ClassificationQQ-N-281,CLASS A FED SPEC SINGLE MATERIAL RESPONSE
Largest Step Diameter1.2490 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
First End StyleEXTERNAL THREADED
Step Quantity8
First End Diameter0.6250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
6680-00-097-67352272 INTERCHANGEABLE
Accelerometer,electrical,linear
Meggitt (orange County), Inc.
5930-00-438-6440 INTERCHANGEABLE
Switch,toggle
2910-00-570-96517041861 INTERCHANGEABLE
Carburetor,float
General Motors Llc Dba General Motors Llc
2520-00-734-77754371 INTERCHANGEABLE
Clip Pressure Plate
Eaton Corp Clutch Div
6145-01-060-7868M22759/16-12-9 INTERCHANGEABLE
Wire,electrical
Sae International Dba Sae International
7490-01-080-86144371 INTERCHANGEABLE
Mailing Machine,electric
Pitney Bowes Inc.
3120-01-166-82354370-02 INTERCHANGEABLE
Bushing,sleeve
Meggitt Safety Systems Inc
5915-01-271-5748293-1361-010 INTERCHANGEABLE
Filter,band Pass
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5330-01-272-1171 INTERCHANGEABLE
Gasket
2925-01-483-35174371R INTERCHANGEABLE
Magneto,ignition
Hartzell Engine Technologies Llc
Cross-Reference Index
Part NumberManufacturer
4371 PRIMARY Weil Pump Co Inc (USA)
Related Parts
6680-00-097-6735INTERCHANGEABLE
ACCELEROMETER,ELECTRICAL,LINEAR
2272
5930-00-438-6440INTERCHANGEABLE
SWITCH,TOGGLE
2910-00-570-9651INTERCHANGEABLE
CARBURETOR,FLOAT
7041861
2520-00-734-7775INTERCHANGEABLE
CLIP PRESSURE PLATE
4371
6145-01-060-7868INTERCHANGEABLE
WIRE,ELECTRICAL
M22759/16-12-9
7490-01-080-8614INTERCHANGEABLE
MAILING MACHINE,ELECTRIC
4371
3120-01-166-8235INTERCHANGEABLE
BUSHING,SLEEVE
4370-02
5915-01-271-5748INTERCHANGEABLE
FILTER,BAND PASS
293-1361-010
5330-01-272-1171INTERCHANGEABLE
GASKET
2925-01-483-3517INTERCHANGEABLE
MAGNETO,IGNITION
4371R

Frequently Asked Questions

What is NSN 3040-00-909-2049?

NSN 3040-00-909-2049 is a Shaft,shouldered, manufactured by Weil Pump Co Inc, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-00-909-2049?

NSN 3040-00-909-2049 has 1 cross-referenced part number: 4371 (Weil Pump Co Inc).

What NSN replaces 3040-00-909-2049?

There are 10 known substitutes for 3040-00-909-2049: 6680-00-097-6735, 5930-00-438-6440, 2910-00-570-9651 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4371?

Key specifications for 4371: Overall Length: 37.125 INCHES NOMINAL IN; End Item Identification: WEIL PUMP CO MODEL VRC PUMP; Material: NICKEL ALLOY; End Similarity: IDENTICAL. 11 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