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Technical Data Sheet
PartsTable / COMPONENT / 04-21038-3
04-21038-3 ✓ 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

CAP ASSEMBLY,PROTECTIVE,MUFFLER-. Key specifications include material: ALUMINUM ALLOY, end_item_identification: 6115-01-561-7455 GENERATOR SET, DIESEL ENGINE, pipe_outside_diameter_accommodated: 1.940 INCHES IN, part_name_assigned_by_controlling_agency: CAP, RAIN EXHAUST. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2990-01-593-5321, 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
04-21038-3
NSN: 2990-01-593-5321
FSC: 2990
CAGE: 30554 — DEPARTMENT OF DEFENSE PROJECT MANAGER-MOBILE ELECTRIC POWER (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
end_item_identification6115-01-561-7455 GENERATOR SET, DIESEL ENGINE
pipe_outside_diameter_accommodated1.940 INCHES IN
part_name_assigned_by_controlling_agencyCAP, RAIN EXHAUST
NSN2990-01-593-5321
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAP ASSEMBLY,PROTECTIVE,MUFFLER- TITLE COMPONENT PN 04-21038-3 MFR CAP ASSEMBLY,PROTECTIV
KEY FEATURES
•
PIPE OUTSIDE DIAMETER ACCOMMODATED: 1.940 INCHES IN
•
MATERIAL: ALUMINUM ALLOY
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATION6115-01-561-7455 GENERATOR SET, DIESEL ENGINE
PART NAME ASSIGNED BY CONTROLLING AGENCYCAP, RAIN EXHAUST
PIPE OUTSIDE DIAMETER ACCOMMODATED1.940 INCHES IN
MATERIALALUMINUM ALLOY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
04-21038-1Interchangeable
interchangeable cross-reference
interchangeable
04-21038Interchangeable
interchangeable cross-reference
interchangeable
7Interchangeable
interchangeable cross-reference
interchangeable
04-21038-2Interchangeable
interchangeable cross-reference
interchangeable
8XInterchangeable
interchangeable cross-reference
interchangeable
55XInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 04-21038-3?
04-21038-3 is a CAP ASSEMBLY,PROTECTIVE,MUFFLER-.
What parts can replace 04-21038-3?
There are 7 known substitutes for 04-21038-3: 04-21038-1, 04-21038, 7 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 04-21038-3?
04-21038-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2990-01-593-5321. 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