PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 04-21038-1
04-21038-1 ✓ 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, end_item_identification: 6115015617634, pipe_outside_diameter_accommodated: 2.50 INCHES IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2990-01-602-0235, 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
04-21038-1
NSN: 2990-01-602-0235
FSC: 2990
CAGE: 30554 — DEPARTMENT OF DEFENSE PROJECT MANAGER-MOBILE ELECTRIC POWER (USA)
SPECIFICATIONS
materialALUMINUM
end_item_identification6115015617634
pipe_outside_diameter_accommodated2.50 INCHES IN
NSN2990-01-602-0235
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAP ASSEMBLY,PROTECTIVE,MUFFLER- TITLE COMPONENT PN 04-21038-1 MFR CAP ASSEMBLY,PROTECTIV
KEY FEATURES
•
MATERIAL: ALUMINUM
•
PIPE OUTSIDE DIAMETER ACCOMMODATED: 2.50 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALALUMINUM
END ITEM IDENTIFICATION6115015617634
PIPE OUTSIDE DIAMETER ACCOMMODATED2.50 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
55XInterchangeable
interchangeable cross-reference
interchangeable
A028X828Interchangeable
interchangeable cross-reference
interchangeable
04-21038Interchangeable
interchangeable cross-reference
interchangeable
04-21038-2Interchangeable
interchangeable cross-reference
interchangeable
8XInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 04-21038-1?
04-21038-1 is a CAP ASSEMBLY,PROTECTIVE,MUFFLER-.
What parts can replace 04-21038-1?
There are 5 known substitutes for 04-21038-1: 55X, A028X828, 04-21038 and 2 more. Substitute compatibility should be verified for your specific system.
Is 04-21038-1 still available?
04-21038-1 is currently cancelled.
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Last verified: July 2026