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Technical Data Sheet
PartsTable / COMPONENT / MS9388-137
MS9388-137 ✓ 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 PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include peripheral_diameter: 2.256 INCHES NOMINAL IN, center_hole_diameter: 2.040 INCHES MINIMUM AND 2.060 INCHES MAXIMUM IN, elongation_percentage: 125 MAXIMUM, cross-sectional_height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-255-0105, 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
MS9388-137
NSN: 5330-00-255-0105
FSC: 5330
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
peripheral_diameter2.256 INCHES NOMINAL IN
center_hole_diameter2.040 INCHES MINIMUM AND 2.060 INCHES MAXIMUM IN
elongation_percentage125 MAXIMUM
cross-sectional_height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
NSN5330-00-255-0105
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS9388-137 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
•
CENTER HOLE DIAMETER: 2.040 INCHES MINIMUM AND 2.060 INCHES MAXIMUM IN
•
PERIPHERAL DIAMETER: 2.256 INCHES NOMINAL IN
•
ELONGATION PERCENTAGE: 125 MAXIMUM
•
CROSS-SECTIONAL HEIGHT: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER2.040 INCHES MINIMUM AND 2.060 INCHES MAXIMUM IN
PERIPHERAL DIAMETER2.256 INCHES NOMINAL IN
ELONGATION PERCENTAGE125 MAXIMUM
CROSS-SECTIONAL HEIGHT0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
4680-137Interchangeable
interchangeable cross-reference
interchangeable
DS-936299Interchangeable
interchangeable cross-reference
interchangeable
2-137V747-75Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS9388-137?
MS9388-137 is a PACKING,PREFORMED.
What parts can replace MS9388-137?
There are 3 known substitutes for MS9388-137: 4680-137, DS-936299, 2-137V747-75. Substitute compatibility should be verified for your specific system.
Is MS9388-137 still available?
MS9388-137 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