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Technical Data Sheet
A4-82039 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER CHLOROPRENE CLASS CR OVERALL, hole_diameter: 0.218 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 5.250 INCHES NOMINAL IN, aperture_width: 4.625 INCHES NOMINAL IN, overall_length: 8.875 INCHES NOMINAL IN, aperture_length: 7.375 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 5330-01-507-0940, 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
A4-82039
NSN: 5330-01-507-0940
FSC: 5330
CAGE: 89357 — EVOQUA WATER TECHNOLOGIES LLC (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR OVERALL
hole_diameter0.218 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width5.250 INCHES NOMINAL IN
aperture_width4.625 INCHES NOMINAL IN
overall_length8.875 INCHES NOMINAL IN
aperture_length7.375 INCHES NOMINAL IN
special_featuresHOLES ALONG LENGTH CENTERED FROM OUTSIDE EDGE OF LENGTH AT 1 3/8IN AND 3 7/8IN IN
style_designatorNON-CIRCULAR
bolt_hole_quantity4
end_item_identificationPANEL,CTRL,CH
cross-sectional_thickness0.125 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-01-507-0940
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A4-82039 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
HOLE DIAMETER: 0.218 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
BOLT HOLE QUANTITY: 4
CROSS-SECTIONAL THICKNESS: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
END ITEM IDENTIFICATIONPANEL,CTRL,CH
HOLE DIAMETER0.218 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
OVERALL LENGTH8.875 INCHES NOMINAL IN
SPECIAL FEATURESHOLES ALONG LENGTH CENTERED FROM OUTSIDE EDGE OF LENGTH AT 1 3/8IN AND 3 7/8IN IN
PART NAME ASSIGNED BY CONTROLLING AGENCYGASKET,FLOW MONITOR
BOLT HOLE QUANTITY4
CROSS-SECTIONAL THICKNESS0.125 INCHES NOMINAL IN
OUTSIDE EDGE TO INSIDE EDGE SMALLEST DISTANCE ALONG WIDTH0.312 INCHES NOMINAL IN
MATERIALRUBBER CHLOROPRENE CLASS CR OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
82039Interchangeable
interchangeable cross-reference
interchangeable
503E-50Interchangeable
interchangeable cross-reference
interchangeable
CU-2208/UInterchangeable
interchangeable cross-reference
interchangeable
03211800Interchangeable
interchangeable cross-reference
interchangeable
A1-81886 ITEM 26Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A4-82039?
A4-82039 is a GASKET.
What parts can replace A4-82039?
There are 5 known substitutes for A4-82039: 82039, 503E-50, CU-2208/U and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A4-82039?
A4-82039 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-507-0940. This indicates validated use in U.S. government and defense supply chains.
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