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PartsTable / COMPONENT / MILR15624-1-4IDX1-20DX1-8CL3
MILR15624-1-4IDX1-20DX1-8CL3 ✓ 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 BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL, hardness_rating: 55.0 SHORE DUROMETER A MAXIMUM OVERALL, outside_diameter: 0.500 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 0.250 INCHES NOMINAL IN, maximum_pressure_rating: 1500.0 POUNDS PER SQUARE INCH (PSI) LBS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-205-3617, 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
MILR15624-1-4IDX1-20DX1-8CL3
NSN: 5330-00-205-3617
FSC: 5330
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
hardness_rating55.0 SHORE DUROMETER A MAXIMUM OVERALL
outside_diameter0.500 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter0.250 INCHES NOMINAL IN
maximum_pressure_rating1500.0 POUNDS PER SQUARE INCH (PSI) LBS
cross-sectional_thickness0.125 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-R-15624 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-205-3617
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MILR15624-1-4IDX1-20DX1-8CL3 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
•
OUTSIDE DIAMETER: 0.500 INCHES NOMINAL IN
•
APERTURE DIAMETER: 0.250 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
CROSS-SECTIONAL THICKNESS: 0.125 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-15624 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MAXIMUM PRESSURE RATING: 1500.0 POUNDS PER SQUARE INCH (PSI) LBS
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER0.500 INCHES NOMINAL IN
APERTURE DIAMETER0.250 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
CROSS-SECTIONAL THICKNESS0.125 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-15624 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MAXIMUM PRESSURE RATING1500.0 POUNDS PER SQUARE INCH (PSI) LBS
HARDNESS RATING55.0 SHORE DUROMETER A MAXIMUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
CB90-43106-163Interchangeable
interchangeable cross-reference
interchangeable
MIL-R-15624 CLASS 3Interchangeable
interchangeable cross-reference
interchangeable
CB90-43106-164Interchangeable
interchangeable cross-reference
interchangeable
MS28775-243Interchangeable
interchangeable cross-reference
interchangeable
SAE-AS28775Interchangeable
interchangeable cross-reference
interchangeable
MILR15624 CL3-.7 5X36X60Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MILR15624-1-4IDX1-20DX1-8CL3?
MILR15624-1-4IDX1-20DX1-8CL3 is a GASKET.
What parts can replace MILR15624-1-4IDX1-20DX1-8CL3?
There are 11 known substitutes for MILR15624-1-4IDX1-20DX1-8CL3: CB90-43106-163, MIL-R-15624 CLASS 3, CB90-43106-164 and 8 more. Substitute compatibility should be verified for your specific system.
Is MILR15624-1-4IDX1-20DX1-8CL3 still available?
MILR15624-1-4IDX1-20DX1-8CL3 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: July 2026