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PartsTable / COMPONENT / 645A851H01
645A851H01 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
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PRODUCT OVERVIEW

The SEAL,WAVEGUIDE is a the manufacturer industrial component. Key specifications include material: PLASTIC SECOND SEAL, seal_thickness: 0.375 INCHES NOMINAL IN, special_features: WEAPON SYSTEM ESSENTIAL; PRESSURE SEAL TO MEET 35.0 PSIG NOMINAL, style_designator: CIRCULAR SOLID SEAL, seal_outside_width: 2.680 INCHES NOMINAL IN, seal_outside_height: 3.560 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-01-288-0616, 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
645A851H01
NSN: 5985-01-288-0616
FSC: 5985
CAGE: 01456 — MICROWAVE DEVELOPMENT LABORATORIES, INC. DBA MICROWAVE DEVELOPMENT LABORATORIES INC (USA)
SPECIFICATIONS
materialPLASTIC SECOND SEAL
seal_thickness0.375 INCHES NOMINAL IN
special_featuresWEAPON SYSTEM ESSENTIAL; PRESSURE SEAL TO MEET 35.0 PSIG NOMINAL
style_designatorCIRCULAR SOLID SEAL
seal_outside_width2.680 INCHES NOMINAL IN
seal_outside_height3.560 INCHES NOMINAL IN
end_item_identificationGROUND THEATER AIR CONTROL SYSTEM (GTACS)
criticality_code_justificationFEAT
NSN5985-01-288-0616
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SEAL,WAVEGUIDE TITLE COMPONENT PN 645A851H01 MFR SEAL,WAVEGUIDE
KEY FEATURES
•
STYLE DESIGNATOR: CIRCULAR SOLID SEAL
•
MATERIAL: ALUMINUM FIRST SEAL
•
SEAL OUTSIDE HEIGHT: 3.560 INCHES NOMINAL IN
•
SEAL THICKNESS: 0.375 INCHES NOMINAL IN
•
SEAL OUTSIDE WIDTH: 2.680 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORCIRCULAR SOLID SEAL
MATERIALALUMINUM FIRST SEAL
SEAL OUTSIDE HEIGHT3.560 INCHES NOMINAL IN
END ITEM IDENTIFICATIONGROUND THEATER AIR CONTROL SYSTEM (GTACS)
MATERIALPLASTIC SECOND SEAL
SEAL THICKNESS0.375 INCHES NOMINAL IN
SPECIAL FEATURESWEAPON SYSTEM ESSENTIAL; PRESSURE SEAL TO MEET 35.0 PSIG NOMINAL
SEAL OUTSIDE WIDTH2.680 INCHES NOMINAL IN
CRITICALITY CODE JUSTIFICATIONFEAT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
2098-1Interchangeable
interchangeable cross-reference
interchangeable
41686Interchangeable
interchangeable cross-reference
interchangeable
MPA063-002-024Interchangeable
interchangeable cross-reference
interchangeable
185019-1Interchangeable
interchangeable cross-reference
interchangeable
53-81625-3Interchangeable
interchangeable cross-reference
interchangeable
G330199-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 645A851H01?
645A851H01 is a SEAL,WAVEGUIDE.
What parts can replace 645A851H01?
There are 7 known substitutes for 645A851H01: 2098-1, 41686, MPA063-002-024 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 645A851H01?
645A851H01 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-01-288-0616. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026