PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5398Deflector,dirt and Liquid

Weil Pump Co Inc · NSN 4320-01-220-0043 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-220-0043 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-220-0043. Primary manufacturer part number: 5398.
Features
  • Deflector,dirt and Liquid — FSC 4320
  • Material Thickness: 1.125 INCHES NOMINAL IN
  • Thread Size and Series/type Designator: 0.500-20 UNF
  • Style Designator: ROUND
  • Material Document and Classification: MIL-M-16576-CANCELED MIL SPEC SINGLE MATERIAL RESPONSE
  • Material: COPPER ALLOY 903
  • Mounting Hole Quantity: 2
  • Angle Between Centerlines of Mounting Holes in Deg: 180.0
Applications
  • Applications requiring Copper Alloy 903 construction
General Description

The Deflector,dirt and Liquid, cataloged under National Stock Number 4320-01-220-0043, 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
NSN4320-01-220-0043
Primary Part Number5398
Item NameDeflector,dirt and Liquid
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerWeil Pump Co Inc
StatusACTIVE
Material Thickness1.125 INCHES NOMINAL IN
Thread Size and Series/type Designator0.500-20 UNF
Style DesignatorROUND
Material Document and ClassificationMIL-M-16576-CANCELED MIL SPEC SINGLE MATERIAL RESPONSE
MaterialCOPPER ALLOY 903
Mounting Hole Quantity2
Angle Between Centerlines of Mounting Holes in Deg180.0
Inside Diameter1.442 INCHES NOMINAL IN
Outside Diameter2.125 INCHES NOMINAL IN
Mounting Hole TypeTHREADED
Thread DirectionRIGHT-HAND
Thread Class2B
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4320-00-077-07633706-450 INTERCHANGEABLE
Impeller,pump,centrifugal
Weil Pump Co Inc
2815-00-324-811014U1457PCADD5395 INTERCHANGEABLE
Lifter Assy Valve
Naval Ship Systems Command
5325-00-378-1208 INTERCHANGEABLE
Ring,retaining
6220-00-544-6501A-5395 INTERCHANGEABLE
Light,cockpit,aircraft
Grimes Aerospace Company
5999-00-622-5765A5395 INTERCHANGEABLE
Contact,electrical
Raytheon Company
5935-00-754-880831-300 INTERCHANGEABLE
Connector,receptacle,electrical
Amphenol Corporation Div Amphenol Rf
5935-00-901-32051011015A071-000 INTERCHANGEABLE
Connector,receptacle,electrical
Delta Electronics Manufacturing Corp Div Delta Electronics Mfg. Corp.
5940-00-998-61265019 INTERCHANGEABLE
Terminal,quick Disconnect
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
4730-01-064-8409A5395 INTERCHANGEABLE
Plug,pipe
Oberdorfer Foundries Inc
5310-01-259-74425398 INTERCHANGEABLE
Nut,plain,hexagon
Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
Cross-Reference Index
Part NumberManufacturer
A5395 Weil Pump Co Inc (USA)
A5395 PIECE 10 Weil Pump Co Inc (USA)
5398 PRIMARY Weil Pump Co Inc (USA)
Related Parts
4320-00-077-0763INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
3706-450
2815-00-324-8110INTERCHANGEABLE
LIFTER ASSY VALVE
14U1457PCADD5395
5325-00-378-1208INTERCHANGEABLE
RING,RETAINING
6220-00-544-6501INTERCHANGEABLE
LIGHT,COCKPIT,AIRCRAFT
A-5395
5999-00-622-5765INTERCHANGEABLE
CONTACT,ELECTRICAL
A5395
5935-00-754-8808INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
31-300
5935-00-901-3205INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
1011015A071-000
5940-00-998-6126INTERCHANGEABLE
TERMINAL,QUICK DISCONNECT
5019
4730-01-064-8409INTERCHANGEABLE
PLUG,PIPE
A5395
5310-01-259-7442INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5398
5985-01-470-5407INTERCHANGEABLE
COUPLER,ANTENNA
5398
5310-01-479-3378INTERCHANGEABLE
WASHER,LOCK
5398

Frequently Asked Questions

What is NSN 4320-01-220-0043?

NSN 4320-01-220-0043 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 4320-01-220-0043?

NSN 4320-01-220-0043 has 3 cross-referenced part numbers: A5395 (Weil Pump Co Inc), A5395 PIECE 10 (Weil Pump Co Inc), 5398 (Weil Pump Co Inc).

What NSN replaces 4320-01-220-0043?

There are 12 known substitutes for 4320-01-220-0043: 4320-00-077-0763, 2815-00-324-8110, 5325-00-378-1208 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5398?

Key specifications for 5398: Material Thickness: 1.125 INCHES NOMINAL IN; Thread Size and Series/type Designator: 0.500-20 UNF; Style Designator: ROUND; Material Document and Classification: MIL-M-16576-CANCELED MIL SPEC SINGLE MATERIAL RESPONSE. 14 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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