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491021 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

FILTER ELEMENT,INTAKE AIR CLEANE. Key specifications include material: METAL FRAME, filtering_media_design: CORRUGATED SINGLE FILTERING MEDIA RESPONSE, end_item_identification: 6150-01-557-1304; LOAD BANK,ELECTRICAL, part_name_assigned_by_controlling_agency: SWITCH,TEMPERATURE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2940-01-387-8427, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
491021
NSN: 2940-01-387-8427
FSC: 2940
CAGE: 08645 — BRIGGS AND STRATTON CORP (USA)
SPECIFICATIONS
materialMETAL FRAME
filtering_media_designCORRUGATED SINGLE FILTERING MEDIA RESPONSE
end_item_identification6150-01-557-1304; LOAD BANK,ELECTRICAL
part_name_assigned_by_controlling_agencySWITCH,TEMPERATURE
NSN2940-01-387-8427
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available FILTER ELEMENT,INTAKE AIR CLEANE TITLE COMPONENT PN 491021 MFR FILTER ELEMENT,INTAKE
KEY FEATURES
•
MATERIAL: PAPER FILTERING MEDIUM
•
FILTERING MEDIA DESIGN: CORRUGATED SINGLE FILTERING MEDIA RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALPAPER FILTERING MEDIUM
FILTERING MEDIA DESIGNCORRUGATED SINGLE FILTERING MEDIA RESPONSE
MATERIALMETAL FRAME
END ITEM IDENTIFICATIONBRIGGS AND STRATTON VANGUARD 14HP ENGINE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
2437Interchangeable
interchangeable cross-reference
interchangeable
M197HInterchangeable
interchangeable cross-reference
interchangeable
197Interchangeable
interchangeable cross-reference
interchangeable
901624K1Interchangeable
interchangeable cross-reference
interchangeable
501Interchangeable
interchangeable cross-reference
interchangeable
A-A-50721Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 491021?
491021 is a FILTER ELEMENT,INTAKE AIR CLEANE.
What parts can replace 491021?
There are 15 known substitutes for 491021: 2437, M197H, 197 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 491021?
491021 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2940-01-387-8427. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026