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Technical Data Sheet
PartsTable / COMPONENT / 73386B
73386B ✓ 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: CORK AND RUBBER SYNTHETIC OVERALL, hole_diameter: 0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 3.125 INCHES NOMINAL IN, style_designator: NON-CIRCULAR, aperture_diameter: 0.937 INCHES NOMINAL IN, bolt_circle_diameter: 2.250 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-298-3762, 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
73386B
NSN: 5330-00-298-3762
FSC: 5330
CAGE: 64104 — DRESSER, LLC (USA)
SPECIFICATIONS
materialCORK AND RUBBER SYNTHETIC OVERALL
hole_diameter0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width3.125 INCHES NOMINAL IN
style_designatorNON-CIRCULAR
aperture_diameter0.937 INCHES NOMINAL IN
bolt_hole_quantity2
bolt_circle_diameter2.250 INCHES NOMINAL IN
outside_corner_radius0.500 INCHES NOMINAL IN
cross-sectional_thickness0.031 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
side_radius_from_gasket_center0.812 INCHES NOMINAL IN
material_document_and_classificationCN705,FSCM 64104 MFR REF ALL MATERIAL RESPONSES OVERALL
NSN5330-00-298-3762
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 73386B 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
•
STYLE DESIGNATOR: NON-CIRCULAR
•
BOLT CIRCLE DIAMETER: 2.250 INCHES NOMINAL IN
•
OUTSIDE CORNER RADIUS: 0.500 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: CN705,FSCM 64104 MFR REF ALL MATERIAL RESPONSES OVERALL
•
SIDE RADIUS FROM GASKET CENTER: 0.812 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.031 INCHES NOMINAL IN
•
MATERIAL: CORK AND RUBBER SYNTHETIC OVERALL
•
APERTURE DIAMETER: 0.937 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORNON-CIRCULAR
BOLT CIRCLE DIAMETER2.250 INCHES NOMINAL IN
OUTSIDE CORNER RADIUS0.500 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONCN705,FSCM 64104 MFR REF ALL MATERIAL RESPONSES OVERALL
SIDE RADIUS FROM GASKET CENTER0.812 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
MATERIALCORK AND RUBBER SYNTHETIC OVERALL
APERTURE DIAMETER0.937 INCHES NOMINAL IN
BOLT HOLE QUANTITY2
HOLE DIAMETER0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
1862780Interchangeable
interchangeable cross-reference
interchangeable
13AD3D2435APC15Interchangeable
interchangeable cross-reference
interchangeable
3174-1PC47Interchangeable
interchangeable cross-reference
interchangeable
733868PC4Interchangeable
interchangeable cross-reference
interchangeable
733868Interchangeable
interchangeable cross-reference
interchangeable
434800Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 73386B?
73386B is a GASKET.
What parts can replace 73386B?
There are 17 known substitutes for 73386B: 1862780, 13AD3D2435APC15, 3174-1PC47 and 14 more. Substitute compatibility should be verified for your specific system.
Is 73386B still available?
73386B is currently cancelled.
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Last verified: July 2026