PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4090Deflector,dirt and Liquid

Weil Pump Co Inc · NSN 4320-01-230-8996 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-230-8996 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-230-8996. Primary manufacturer part number: 4090.
Features
  • Deflector,dirt and Liquid — FSC 4320
  • Thread Class: 2B
  • Material Thickness: 0.375 INCHES NOMINAL IN
  • Outside Diameter: 2.125 INCHES NOMINAL IN
  • Mounting Hole Quantity: 1
  • Thread Size and Series/type Designator: 0.250-20 UNIFIED NATIONAL COARSE (UNC)
  • Style Designator: ROUND, STEPPED
  • Mounting Hole Type: THREADED
Applications
  • Applications requiring Copper Alloy construction
General Description

The Deflector,dirt and Liquid, cataloged under National Stock Number 4320-01-230-8996, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Weil Pump Co Inc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-230-8996
Primary Part Number4090
Item NameDeflector,dirt and Liquid
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerWeil Pump Co Inc
StatusACTIVE
Thread Class2B
Material Thickness0.375 INCHES NOMINAL IN
Outside Diameter2.125 INCHES NOMINAL IN
Mounting Hole Quantity1
Thread Size and Series/type Designator0.250-20 UNIFIED NATIONAL COARSE (UNC)
Style DesignatorROUND, STEPPED
Mounting Hole TypeTHREADED
MaterialCOPPER ALLOY
Thread DirectionRIGHT-HAND
Inside Diameter1.235 INCHES NOMINAL IN
Chamfer Angle in Deg38.5
Step Diameter1.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5940-00-082-46193LT409037COH INTERCHANGEABLE
Terminal,lug
Brainin-Advance Industries, Llc
3110-00-158-6273A1837-1 INTERCHANGEABLE
Bearing,ball,thrust
Abc Acquisition Company Dba Aetna Bearing Company
5999-00-225-23202528395 INTERCHANGEABLE
Contact,electrical
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
2910-00-383-9261 INTERCHANGEABLE
Pump,fuel,cam Actuated
5130-00-564-14924090 KIT INTERCHANGEABLE
Installation Tool,fastener,pneum
Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc
5310-00-818-40914090 INTERCHANGEABLE
Nut,plain,knurled
Roller Bearing Co of America, Inc Div Pic Design
5355-00-964-40394090 INTERCHANGEABLE
Pointer,dial
Wakmann Watch Company Inc
1660-01-091-8083 INTERCHANGEABLE
Connector,oxygen Hose to Regulat
4320-01-230-90763706-462 INTERCHANGEABLE
Impeller,pump,centrifugal
Weil Pump Co Inc
6530-01-300-65394090 INTERCHANGEABLE
Specimen Kit,urine
Sage Products, Llc Dba Stryker Sales, Llc
Cross-Reference Index
Part NumberManufacturer
A1774 Weil Pump Co Inc (USA)
A1774 PIECE 10 Weil Pump Co Inc (USA)
4090 PRIMARY Weil Pump Co Inc (USA)
Related Parts
5940-00-082-4619INTERCHANGEABLE
TERMINAL,LUG
3LT409037COH
3110-00-158-6273INTERCHANGEABLE
BEARING,BALL,THRUST
A1837-1
5999-00-225-2320INTERCHANGEABLE
CONTACT,ELECTRICAL
2528395
2910-00-383-9261INTERCHANGEABLE
PUMP,FUEL,CAM ACTUATED
5130-00-564-1492INTERCHANGEABLE
INSTALLATION TOOL,FASTENER,PNEUM
4090 KIT
5310-00-818-4091INTERCHANGEABLE
NUT,PLAIN,KNURLED
4090
5355-00-964-4039INTERCHANGEABLE
POINTER,DIAL
4090
1660-01-091-8083INTERCHANGEABLE
CONNECTOR,OXYGEN HOSE TO REGULAT
4320-01-230-9076INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
3706-462
6530-01-300-6539INTERCHANGEABLE
SPECIMEN KIT,URINE
4090
8455-01-325-8792INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-01-325-8793INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE

Frequently Asked Questions

What is NSN 4320-01-230-8996?

NSN 4320-01-230-8996 is a Deflector,dirt and Liquid, manufactured by Weil Pump Co Inc, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-230-8996?

NSN 4320-01-230-8996 has 3 cross-referenced part numbers: A1774 (Weil Pump Co Inc), A1774 PIECE 10 (Weil Pump Co Inc), 4090 (Weil Pump Co Inc).

What NSN replaces 4320-01-230-8996?

There are 12 known substitutes for 4320-01-230-8996: 5940-00-082-4619, 3110-00-158-6273, 5999-00-225-2320 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4090?

Key specifications for 4090: Thread Class: 2B; Material Thickness: 0.375 INCHES NOMINAL IN; Outside Diameter: 2.125 INCHES NOMINAL IN; End Item Identification: WEIL PUMP CO MODEL 1 1/2 IN. VRC PUMP IN. 13 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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