PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AF-421Filter Element,intake Air Cleane

Arvinmeritor Inc · NSN 2940-00-423-0925 · FSC 2940 · No Item Name Available
Verified by PartsTable
NSN 2940-00-423-0925 — this item is cataloged by the U.S. Government under National Stock Number 2940-00-423-0925. Primary manufacturer part number: AF-421.
Features
  • Filter Element,intake Air Cleane — FSC 2940
  • Material: PAPER FILTERING MEDIUM
  • Style Designator: CYLINDRICAL W/ CONTAINER (RIGID)
  • Body Overall Length: 16.375 INCHES NOMINAL IN
  • Body Diameter: 12.093 INCHES NOMINAL IN
  • Body Inside Diameter: 7.724 INCHES NOMINAL IN
  • Design Type: LIMITED
  • Filtering Media Design: PLEATED SINGLE FILTERING MEDIA RESPONSE
Applications
  • Fluid filtration and purification
  • Engine intake air cleaning
  • Hydraulic system protection
  • Applications requiring Paper Filtering Medium construction
General Description

The Filter Element,intake Air Cleane, cataloged under National Stock Number 2940-00-423-0925, is classified within Federal Supply Class 2940 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Arvinmeritor Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 29 commercial cross-references from 22 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2940-00-423-0925
Primary Part NumberAF-421
Item NameFilter Element,intake Air Cleane
FSC / FSG2940 / 29 — No Item Name Available
ManufacturerArvinmeritor Inc
StatusCANCELLED
MaterialPAPER FILTERING MEDIUM
Style DesignatorCYLINDRICAL W/ CONTAINER (RIGID)
Body Overall Length16.375 INCHES NOMINAL IN
Body Diameter12.093 INCHES NOMINAL IN
Body Inside Diameter7.724 INCHES NOMINAL IN
Design TypeLIMITED
Filtering Media DesignPLEATED SINGLE FILTERING MEDIA RESPONSE
MaterialMETAL CONTAINER/CARTRIDGE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
5960-00-082-4236 INTERCHANGEABLE
Electron Tube
2520-00-301-7426 INTERCHANGEABLE
Ring
3455-00-516-315117613 INTERCHANGEABLE
Cutter,milling,end
New York Twist Drill Inc
5945-00-612-9319 INTERCHANGEABLE
Relay,thermal
5950-00-776-3305470576-1 INTERCHANGEABLE
Transformer,power
Raytheon Company Dba Raytheon
2940-00-884-575917665 INTERCHANGEABLE
Filter Element,intake Air Cleane
Arvinmeritor Inc
4320-00-928-2442066-07686-000 INTERCHANGEABLE
Ring,wearing
Aqua-Chem, Inc. Dba Aqua-Chem Inc
4210-01-278-088142225 INTERCHANGEABLE
Hose Assembly,nonmetallic,fire F
Tyco Fire Products Lp
5950-01-457-959842225 INTERCHANGEABLE
Reactor
Pico Electronics Inc
4820-01-504-281842225 INTERCHANGEABLE
Cap,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
P11-3179 Donaldson Company, Inc. (USA)
AF 421M Cummins Filtration Inc Dba Fleetguard Div Cummins Inc (USA)
949525 Vme Americas Inc Sub of Vme Group N V (USA)
AF-421 PRIMARY Arvinmeritor Inc (USA)
AF-2222 PRIMARY Arvinmeritor Inc (USA)
702864C1 Navistar International Corporation Dba Navistar (USA)
6N6064 Caterpillar Inc Div Caterpillar Defense (USA)
949525 Dana Off Highway Products, Llc (USA)
PA1886 PRIMARY Baldwin Filters (USA)
ARM10-9086 Air Refiner Inc (USA)
AF303M Cummins Filtration Inc Dba Fleetguard Div Cummins Inc (USA)
CA535 PRIMARY Honeywell International Inc Dba Honeywell Div Consumer Products Group (USA)
42225 PRIMARY Wix Corp (USA)
PMA-10-9086 Parma Industries Inc (USA)
702864C1 Komatsu America Corp. (USA)
A417C General Motors Llc Dba General Motors (USA)
702864C1 Komatsu American Intl Co (USA)
2225 National Automotive Parts Assn/napa/ (USA)
70674967 New Holland Construction (USA)
P11-7435 Donaldson Company, Inc. (USA)
Related Parts
5960-00-082-4236INTERCHANGEABLE
ELECTRON TUBE
2520-00-301-7426INTERCHANGEABLE
RING
3455-00-516-3151INTERCHANGEABLE
CUTTER,MILLING,END
17613
5945-00-612-9319INTERCHANGEABLE
RELAY,THERMAL
5950-00-776-3305INTERCHANGEABLE
TRANSFORMER,POWER
470576-1
2940-00-884-5759INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
17665
4320-00-928-2442INTERCHANGEABLE
RING,WEARING
066-07686-000
4210-01-278-0881INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC,FIRE F
42225
5950-01-457-9598INTERCHANGEABLE
REACTOR
42225
4820-01-504-2818INTERCHANGEABLE
CAP,VALVE
42225

Frequently Asked Questions

What is NSN 2940-00-423-0925?

NSN 2940-00-423-0925 is a Filter Element,intake Air Cleane, manufactured by Arvinmeritor Inc, classified under FSC 2940 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2940-00-423-0925?

NSN 2940-00-423-0925 has 29 cross-referenced part numbers: P11-3179 (Donaldson Company, Inc.), AF 421M (Cummins Filtration Inc Dba Fleetguard Div Cummins Inc), 949525 (Vme Americas Inc Sub of Vme Group N V), AF-421 (Arvinmeritor Inc), AF-2222 (Arvinmeritor Inc) and 24 more.

What NSN replaces 2940-00-423-0925?

There are 10 known substitutes for 2940-00-423-0925: 5960-00-082-4236, 2520-00-301-7426, 3455-00-516-3151 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AF-421?

Key specifications for AF-421: Material: PAPER FILTERING MEDIUM; Style Designator: CYLINDRICAL W/ CONTAINER (RIGID); Special Features: TOP END CAP CENTER HOLE 0.900 IN. DIA IN; Body Overall Length: 16.375 INCHES NOMINAL IN. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2940-00-423-0925 still in active supply?

NSN 2940-00-423-0925 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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