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Technical Data Sheet
2-238E688-70 ✓ 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 ETHYLENE-PROPYLENE CLASS EPM, center_hole_diameter: 3.460 INCHES MINIMUM AND 3.508 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN, material_document_and_classification: MIL-G-22050 MIL SPEC SINGLE MATERIAL RESPONSE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-418-9135, 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
2-238E688-70
NSN: 5331-01-418-9135
FSC: 5331 — O-RING
CAGE: 02697 — PARKER-HANNIFIN CORP DIV O-RING DIVISION (USA)
SPECIFICATIONS
materialRUBBER ETHYLENE-PROPYLENE CLASS EPM
center_hole_diameter3.460 INCHES MINIMUM AND 3.508 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
material_document_and_classificationMIL-G-22050 MIL SPEC SINGLE MATERIAL RESPONSE
NSN5331-01-418-9135
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2-238E688-70 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
CENTER HOLE DIAMETER: 3.460 INCHES MINIMUM AND 3.508 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-22050 MIL SPEC SINGLE MATERIAL RESPONSE
MATERIAL: RUBBER ETHYLENE-PROPYLENE CLASS EPM
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
CENTER HOLE DIAMETER3.460 INCHES MINIMUM AND 3.508 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-22050 MIL SPEC SINGLE MATERIAL RESPONSE
MATERIALRUBBER ETHYLENE-PROPYLENE CLASS EPM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
AM3227Interchangeable
interchangeable cross-reference
interchangeable
AS568-238Interchangeable
interchangeable cross-reference
interchangeable
938284631U01Interchangeable
interchangeable cross-reference
interchangeable
D3114650AInterchangeable
interchangeable cross-reference
interchangeable
58094Interchangeable
interchangeable cross-reference
interchangeable
D2000-05 2BG715E034EF11EF21F1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2-238E688-70?
2-238E688-70 is a O-RING.
What parts can replace 2-238E688-70?
There are 12 known substitutes for 2-238E688-70: AM3227, AS568-238, 938284631U01 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2-238E688-70?
2-238E688-70 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-418-9135. This indicates validated use in U.S. government and defense supply chains.
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