PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

491021Filter Element,intake Air Cleane

Briggs and Stratton Corp · NSN 2940-01-387-8427 · FSC 2940 · No Item Name Available
Verified by PartsTable
NSN 2940-01-387-8427 — this item is cataloged by the U.S. Government under National Stock Number 2940-01-387-8427. Primary manufacturer part number: 491021.
Features
  • Filter Element,intake Air Cleane — FSC 2940
  • Material: PAPER FILTERING MEDIUM
  • Filtering Media Design: CORRUGATED SINGLE FILTERING MEDIA RESPONSE
  • Material: METAL FRAME
  • 4 verified cross-references
  • Primary manufacturer: Briggs and Stratton Corp
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 2940-01-387-8427, is classified within Federal Supply Class 2940 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Briggs and Stratton Corp. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, 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
NSN2940-01-387-8427
Primary Part Number491021
Item NameFilter Element,intake Air Cleane
FSC / FSG2940 / 29 — No Item Name Available
ManufacturerBriggs and Stratton Corp
StatusACTIVE
MaterialPAPER FILTERING MEDIUM
Filtering Media DesignCORRUGATED SINGLE FILTERING MEDIA RESPONSE
MaterialMETAL FRAME
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4920-00-091-0407M197H INTERCHANGEABLE
Mount,optical Transit Square
Brunson Instrument Company Dba Brunson Instrument Co
9330-00-124-633224-37 INTERCHANGEABLE
Plastic Strip
Cmc of Georgia, Inc.
5998-00-160-11112437 INTERCHANGEABLE
Circuit Card Assembly
Mission Systems Davenport Inc.
5310-00-282-4778 INTERCHANGEABLE
Nut,plain,hexagon
6670-00-303-7700 INTERCHANGEABLE
Scale,weighing
4710-00-406-708142437 INTERCHANGEABLE
Tube Assembly,metal
Cummins Inc.
5355-00-667-638824-37 INTERCHANGEABLE
Knob
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
5910-00-683-29888909490 INTERCHANGEABLE
Capacitor,variable,ceramic Diele
Us Army Aviation and Missile Command
4140-00-713-9320243-7 INTERCHANGEABLE
Impeller,fan,axial
Industrial Design Laboratories Inc
5320-00-754-026013X37 INTERCHANGEABLE
Rivet,tubular
Napco International Llc Dba Napco International Inc
Cross-Reference Index
Part NumberManufacturer
2437 Genuine Parts Company Div Automotive Parts Group, Dba Napa (USA)
2437 National Automotive Parts Assn/napa/ (USA)
491021 PRIMARY Briggs and Stratton Corp (USA)
42437 PRIMARY Wix Corp (USA)
Related Parts
4920-00-091-0407INTERCHANGEABLE
MOUNT,OPTICAL TRANSIT SQUARE
M197H
9330-00-124-6332INTERCHANGEABLE
PLASTIC STRIP
24-37
5998-00-160-1111INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
2437
5310-00-282-4778INTERCHANGEABLE
NUT,PLAIN,HEXAGON
6670-00-303-7700INTERCHANGEABLE
SCALE,WEIGHING
4710-00-406-7081INTERCHANGEABLE
TUBE ASSEMBLY,METAL
42437
5355-00-667-6388INTERCHANGEABLE
KNOB
24-37
5910-00-683-2988INTERCHANGEABLE
CAPACITOR,VARIABLE,CERAMIC DIELE
8909490
4140-00-713-9320INTERCHANGEABLE
IMPELLER,FAN,AXIAL
243-7
5320-00-754-0260INTERCHANGEABLE
RIVET,TUBULAR
13X37
6810-00-798-9709INTERCHANGEABLE
HARDNESS BUFFER SOLUTION
10116
5920-00-952-9029INTERCHANGEABLE
FUSEHOLDER,EXTRACTOR POST

Frequently Asked Questions

What is NSN 2940-01-387-8427?

NSN 2940-01-387-8427 is a Filter Element,intake Air Cleane, manufactured by Briggs and Stratton Corp, classified under FSC 2940 (No Item Name Available). Status: active.

What are the part numbers for NSN 2940-01-387-8427?

NSN 2940-01-387-8427 has 4 cross-referenced part numbers: 2437 (Genuine Parts Company Div Automotive Parts Group, Dba Napa), 2437 (National Automotive Parts Assn/napa/), 491021 (Briggs and Stratton Corp), 42437 (Wix Corp).

What NSN replaces 2940-01-387-8427?

There are 12 known substitutes for 2940-01-387-8427: 4920-00-091-0407, 9330-00-124-6332, 5998-00-160-1111 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 491021?

Key specifications for 491021: Material: PAPER FILTERING MEDIUM; Filtering Media Design: CORRUGATED SINGLE FILTERING MEDIA RESPONSE; Material: METAL FRAME; End Item Identification: BRIGGS AND STRATTON VANGUARD 14HP ENGINE. 4 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