PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

WD19Filter Element,fluid

Walker Mfg Co · NSN 4330-00-278-9595 · FSC 4330 · No Item Name Available
Verified by PartsTable
NSN 4330-00-278-9595 — this item is cataloged by the U.S. Government under National Stock Number 4330-00-278-9595. Primary manufacturer part number: WD19.
Features
  • Filter Element,fluid — FSC 4330
  • Media for Which Designed: ANY ACCEPTABLE
  • Body Diameter: 3.688 INCHES NOMINAL IN
  • Design Type: NONREUSABLE
  • Flow Direction: OUTSIDE IN
  • Body Overall Length: 4.250 INCHES NOMINAL IN
  • Material: PLASTIC FILTERING MEDIUM
  • Body Inside Diameter: 1.469 INCHES NOMINAL IN
Applications
  • Fluid filtration and purification
  • Engine intake air cleaning
  • Hydraulic system protection
  • Applications requiring Plastic Filtering Medium construction
General Description

The Filter Element,fluid, cataloged under National Stock Number 4330-00-278-9595, is classified within Federal Supply Class 4330 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Walker Mfg Co. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4330-00-278-9595
Primary Part NumberWD19
Item NameFilter Element,fluid
FSC / FSG4330 / 43 — No Item Name Available
ManufacturerWalker Mfg Co
StatusACTIVE
Media for Which DesignedANY ACCEPTABLE
Body Diameter3.688 INCHES NOMINAL IN
Design TypeNONREUSABLE
Flow DirectionOUTSIDE IN
Body Overall Length4.250 INCHES NOMINAL IN
MaterialPLASTIC FILTERING MEDIUM
Body Inside Diameter1.469 INCHES NOMINAL IN
MaterialMETAL AND PAPER CONTAINER/CARTRIDGE
Style DesignatorCYLINDRICAL W/ CONTAINER (RIGID)
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5998-00-105-6578 INTERCHANGEABLE
Circuit Card Assembly
4330-00-211-4799 INTERCHANGEABLE
Filter Element,fluid
3110-00-474-107586071 INTERCHANGEABLE
Bearing,ball,rod End
Northrop Grumman Systems Corporation
5935-00-755-33589975494 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Us Army Aviation and Missile Command
6680-00-786-3950RC-30 INTERCHANGEABLE
Tachometer,mechanical,fixed Moun
Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc
2920-01-197-7229SAW11977229 INTERCHANGEABLE
Armature,motor
Southern Automotive Wholesalers, Inc
2990-01-218-8457AR86596 INTERCHANGEABLE
Cap Assembly,protective,muffler-
Deere & Co
4240-01-250-9028 INTERCHANGEABLE
Coupler Assembly,respirator
5905-01-670-4811RC-20 INTERCHANGEABLE
Resistor,fixed,film
Cannon Load Banks, Inc. Dba Cannon Load Banks Inc
7050-01-691-7267 INTERCHANGEABLE
Computer Subassembly
Cross-Reference Index
Part NumberManufacturer
8607-1 Moto-Search Mfg Co Inc (USA)
WD19 PRIMARY Walker Mfg Co (USA)
RC20 Walker Mfg Co (USA)
Related Parts
5998-00-105-6578INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
4330-00-211-4799INTERCHANGEABLE
FILTER ELEMENT,FLUID
3110-00-474-1075INTERCHANGEABLE
BEARING,BALL,ROD END
86071
5935-00-755-3358INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
9975494
6680-00-786-3950INTERCHANGEABLE
TACHOMETER,MECHANICAL,FIXED MOUN
RC-30
2920-01-197-7229INTERCHANGEABLE
ARMATURE,MOTOR
SAW11977229
2990-01-218-8457INTERCHANGEABLE
CAP ASSEMBLY,PROTECTIVE,MUFFLER-
AR86596
4240-01-250-9028INTERCHANGEABLE
COUPLER ASSEMBLY,RESPIRATOR
5905-01-670-4811INTERCHANGEABLE
RESISTOR,FIXED,FILM
RC-20
7050-01-691-7267INTERCHANGEABLE
COMPUTER SUBASSEMBLY
6150-01-695-2027INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
86071

Frequently Asked Questions

What is NSN 4330-00-278-9595?

NSN 4330-00-278-9595 is a Filter Element,fluid, manufactured by Walker Mfg Co, classified under FSC 4330 (No Item Name Available). Status: active.

What are the part numbers for NSN 4330-00-278-9595?

NSN 4330-00-278-9595 has 3 cross-referenced part numbers: 8607-1 (Moto-Search Mfg Co Inc), WD19 (Walker Mfg Co), RC20 (Walker Mfg Co).

What NSN replaces 4330-00-278-9595?

There are 11 known substitutes for 4330-00-278-9595: 5998-00-105-6578, 4330-00-211-4799, 3110-00-474-1075 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of WD19?

Key specifications for WD19: Media for Which Designed: ANY ACCEPTABLE; Body Diameter: 3.688 INCHES NOMINAL IN; Design Type: NONREUSABLE; Flow Direction: OUTSIDE IN. 10 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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