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PartsTable / COMPONENT / 21499
21499 ✓ 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

The COVER,HYDRAULIC VALVE is a the manufacturer industrial component. Key specifications include material: STEEL, flange_length: 0.438 INCHES NOMINAL IN, flange_diameter: 3.500 INCHES NOMINAL IN, material_document_and_classification: MIL-S890,CLASS B MIL SPEC SINGLE MATERIAL RESPONSE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-00-939-2623, 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
21499
NSN: 3020-00-939-2623
FSC: 3020
CAGE: 98810 — AEROSONIC LLC (USA)
SPECIFICATIONS
materialSTEEL
flange_length0.438 INCHES NOMINAL IN
flange_diameter3.500 INCHES NOMINAL IN
material_document_and_classificationMIL-S890,CLASS B MIL SPEC SINGLE MATERIAL RESPONSE
NSN3020-00-939-2623
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COVER,HYDRAULIC VALVE TITLE COMPONENT PN 21499 MFR COVER,HYDRAULIC VALVE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
21499Interchangeable
interchangeable cross-reference
interchangeable
B21499Interchangeable
interchangeable cross-reference
interchangeable
15907 ITEM29Interchangeable
interchangeable cross-reference
interchangeable
15907 ITEM46Interchangeable
interchangeable cross-reference
interchangeable
N-375Interchangeable
interchangeable cross-reference
interchangeable
N-375 PIECE 77Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21499?
21499 is a COVER,HYDRAULIC VALVE.
What parts can replace 21499?
There are 6 known substitutes for 21499: 21499, B21499, 15907 ITEM29 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21499?
21499 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-00-939-2623. 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