PartsTable
Technical Data Sheet
MS9386-042 ✓ 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 SILICONE CLASS Q, temp_rating: -85.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF, hardness_rating: 75.0 SHORE DUROMETER A NOMINAL, outside_diameter: 3.379 INCHES NOMINAL IN, center_hole_diameter: 3.224 INCHES MINIMUM AND 3.254 INCHES MAXIMUM IN, elongation_percentage: 125 MAXIMUM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-127-7444, 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
MS9386-042
NSN: 5331-00-127-7444
FSC: 5331 — O-RING
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialRUBBER SILICONE CLASS Q
temp_rating-85.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF
hardness_rating75.0 SHORE DUROMETER A NOMINAL
outside_diameter3.379 INCHES NOMINAL IN
center_hole_diameter3.224 INCHES MINIMUM AND 3.254 INCHES MAXIMUM IN
elongation_percentage125 MAXIMUM
cross-sectional_height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
NSN5331-00-127-7444
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS9386-042 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
ELONGATION PERCENTAGE: 125 MAXIMUM
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL
MATERIAL: RUBBER SILICONE CLASS Q
TEMP RATING: -85.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF
CENTER HOLE DIAMETER: 3.224 INCHES MINIMUM AND 3.254 INCHES MAXIMUM IN
OUTSIDE DIAMETER: 3.379 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
ELONGATION PERCENTAGE125 MAXIMUM
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
HARDNESS RATING75.0 SHORE DUROMETER A NOMINAL
MATERIALRUBBER SILICONE CLASS Q
TEMP RATING-85.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF
CENTER HOLE DIAMETER3.224 INCHES MINIMUM AND 3.254 INCHES MAXIMUM IN
OUTSIDE DIAMETER3.379 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
MS9386-227Interchangeable
interchangeable cross-reference
interchangeable
AMS7267Interchangeable
interchangeable cross-reference
interchangeable
AS568-282Interchangeable
interchangeable cross-reference
interchangeable
AS9386-228Interchangeable
interchangeable cross-reference
interchangeable
AS568-437Interchangeable
interchangeable cross-reference
interchangeable
745056Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS9386-042?
MS9386-042 is a O-RING.
What parts can replace MS9386-042?
There are 8 known substitutes for MS9386-042: MS9386-227, AMS7267, AS568-282 and 5 more. Substitute compatibility should be verified for your specific system.
Is MS9386-042 still available?
MS9386-042 is currently cancelled.
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