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Technical Data Sheet
R68331-212 ✓ 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 SEAL,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL COMP 301 OR STEEL COMP 304 SPRING, seal_width: 0.129 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN, temp_rating: -423.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF, construction: SOLID, housing_bore_diameter: 1.126 INCHES NOMINAL IN, accommodated_shaft_diameter: 0.856 INCHES MINIMUM AND 0.868 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-145-4014, 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
R68331-212
NSN: 5330-01-145-4014
FSC: 5330
CAGE: 0AT62 — SIEMENS ENERGY, INC. DBA DRESSER-RAND (USA)
SPECIFICATIONS
materialSTEEL COMP 301 OR STEEL COMP 304 SPRING
seal_width0.129 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
temp_rating-423.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF
constructionSOLID
housing_bore_diameter1.126 INCHES NOMINAL IN
accommodated_shaft_diameter0.856 INCHES MINIMUM AND 0.868 INCHES MAXIMUM IN
cross-sectional_shape_styleC-SECTION W/ FLAT SPRING
NSN5330-01-145-4014
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: R68331-212 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
SEAL WIDTH: 0.129 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLE: C-SECTION W/ FLAT SPRING
MATERIAL: STEEL COMP 301 OR STEEL COMP 304 SPRING
ACCOMMODATED SHAFT DIAMETER: 0.856 INCHES MINIMUM AND 0.868 INCHES MAXIMUM IN
TEMP RATING: -423.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF
HOUSING BORE DIAMETER: 1.126 INCHES NOMINAL IN
CONSTRUCTION: SOLID
TECHNICAL CHARACTERISTICS (FLIS)
SEAL WIDTH0.129 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLEC-SECTION W/ FLAT SPRING
MATERIALSTEEL COMP 301 OR STEEL COMP 304 SPRING
ACCOMMODATED SHAFT DIAMETER0.856 INCHES MINIMUM AND 0.868 INCHES MAXIMUM IN
TEMP RATING-423.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF
HOUSING BORE DIAMETER1.126 INCHES NOMINAL IN
CONSTRUCTIONSOLID
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
1820-17Interchangeable
interchangeable cross-reference
interchangeable
2-132A275Interchangeable
interchangeable cross-reference
interchangeable
5BCD56K712Interchangeable
interchangeable cross-reference
interchangeable
931Interchangeable
interchangeable cross-reference
interchangeable
5427-17Interchangeable
interchangeable cross-reference
interchangeable
15-19-85898Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R68331-212?
R68331-212 is a SEAL,PLAIN.
What parts can replace R68331-212?
There are 9 known substitutes for R68331-212: 1820-17, 2-132A275, 5BCD56K712 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R68331-212?
R68331-212 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-145-4014. This indicates validated use in U.S. government and defense supply chains.
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