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814040 — RADIATOR,ENGINE COOLANT

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

814040: RADIATOR,ENGINE COOLANT.

The RADIATOR,ENGINE COOLANT is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR AND PAPER OVERALL, hole_diameter: 0.340 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, aperture_width: 4.500 INCHES NOMINAL IN, aperture_length: 5.810 INCHES NOMINAL IN, special_features: TW0 ADDITIONAL BOLT HOLES 0.250 IN. DIA IN, style_designator: PEAR.

This part is cataloged in the U.S. Government catalog under NSN 5330-00-492-1997, 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
814040
NSN: 5330-00-492-1997
NIINs: 004921997, 014144806
FSC: 5330 — Packing and Gasket Materials
CAGE: 07524 — DOVER PUMPS & PROCESS SOLUTIONS SEGMENT INC DBA BLACKMER DIV BLACKMER (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR AND PAPER OVERALL
hole_diameter0.340 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
aperture_width4.500 INCHES NOMINAL IN
aperture_length5.810 INCHES NOMINAL IN
special_featuresTW0 ADDITIONAL BOLT HOLES 0.250 IN. DIA IN
style_designatorPEAR
bolt_hole_quantity7
bearing_surface_width0.690 INCHES NOMINAL IN
cross-sectional_thickness0.030 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationWG-25 FSCM 76680 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-492-1997
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 814040 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 THICKNESS: 0.030 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PEAR
•
BEARING SURFACE WIDTH: 0.690 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: WG-25 FSCM 76680 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
APERTURE WIDTH: 4.500 INCHES NOMINAL IN
•
APERTURE LENGTH: 5.810 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 7
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.030 INCHES NOMINAL IN
STYLE DESIGNATORPEAR
BEARING SURFACE WIDTH0.690 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONWG-25 FSCM 76680 MFR REF SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
APERTURE WIDTH4.500 INCHES NOMINAL IN
APERTURE LENGTH5.810 INCHES NOMINAL IN
BOLT HOLE QUANTITY7
SPECIAL FEATURESTW0 ADDITIONAL BOLT HOLES 0.250 IN. DIA IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR AND PAPER OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
E3548PC111Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 814040?
814040 is a RADIATOR,ENGINE COOLANT.
What parts can replace 814040?
There is 1 known substitute for 814040: E3548PC111. Substitute compatibility should be verified for your specific system.
What is the NSN for 814040?
814040 is cataloged in the U.S. Government catalog under NSN 5330-00-492-1997. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.