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Technical Data Sheet
PartsTable / O-RING / 035 12078
035 12078 ✓ 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

SLEEVE,DIRECTIONAL CONTROL LINEA. Key specifications include material: COPPER ALLOY. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-020-0105, 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
035 12078
NSN: 5331-00-020-0105
FSC: 5331 — O-RING
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialCOPPER ALLOY
NSN5331-00-020-0105
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 035 12078 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
•
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL
•
OUTSIDE DIAMETER: 0.818 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.635 INCHES MINIMUM AND 0.653 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
•
ELONGATION PERCENTAGE: 125 MAXIMUM
TECHNICAL CHARACTERISTICS (FLIS)
HARDNESS RATING75.0 SHORE DUROMETER A NOMINAL
OUTSIDE DIAMETER0.818 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.635 INCHES MINIMUM AND 0.653 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
MATERIALRUBBER FLUOROCARBON CLASS FPM
ELONGATION PERCENTAGE125 MAXIMUM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
2266975Interchangeable
interchangeable cross-reference
interchangeable
C20575Interchangeable
interchangeable cross-reference
interchangeable
AMS3303Interchangeable
interchangeable cross-reference
interchangeable
AS568-908Interchangeable
interchangeable cross-reference
interchangeable
678-0023-00Interchangeable
interchangeable cross-reference
interchangeable
30118Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 035 12078?
035 12078 is a SLEEVE,DIRECTIONAL CONTROL LINEA.
What parts can replace 035 12078?
There are 30 known substitutes for 035 12078: 2266975, C20575, AMS3303 and 27 more. Substitute compatibility should be verified for your specific system.
Is 035 12078 still available?
035 12078 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026