PartsTable
Technical Data Sheet
PartsTable / O-RING / MS9388-225
MS9388-225 ✓ 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 O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM, center_hole_diameter: 1.849 INCHES MINIMUM AND 1.869 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-165-1944, 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
MS9388-225
NSN: 5331-00-165-1944
FSC: 5331 — O-RING
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM
center_hole_diameter1.849 INCHES MINIMUM AND 1.869 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
NSN5331-00-165-1944
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS9388-225 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 HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
TEMP RATING: -15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
•
ELONGATION PERCENTAGE: 125 MAXIMUM
•
CENTER HOLE DIAMETER: 1.841 INCHES MINIMUM AND 1.877 INCHES MAXIMUM IN
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
•
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL
•
OUTSIDE DIAMETER: 2.111 INCHES MINIMUM AND 2.163 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
TEMP RATING-15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
ELONGATION PERCENTAGE125 MAXIMUM
CENTER HOLE DIAMETER1.841 INCHES MINIMUM AND 1.877 INCHES MAXIMUM IN
MATERIALRUBBER FLUOROCARBON CLASS FPM
HARDNESS RATING75.0 SHORE DUROMETER A NOMINAL
OUTSIDE DIAMETER2.111 INCHES MINIMUM AND 2.163 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
R149P225AInterchangeable
interchangeable cross-reference
interchangeable
5330PL0631687Interchangeable
interchangeable cross-reference
interchangeable
J221P225Interchangeable
interchangeable cross-reference
interchangeable
812-14Interchangeable
interchangeable cross-reference
interchangeable
51543Interchangeable
interchangeable cross-reference
interchangeable
11-81342Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS9388-225?
MS9388-225 is a O-RING.
What parts can replace MS9388-225?
There are 19 known substitutes for MS9388-225: R149P225A, 5330PL0631687, J221P225 and 16 more. Substitute compatibility should be verified for your specific system.
Is MS9388-225 still available?
MS9388-225 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026