PartsTable
Technical Data Sheet
PartsTable / O-RING / S9412-111
S9412-111 ✓ 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, hardness_rating: 75.0 SHORE DUROMETER A NOMINAL, outside_diameter: 0.630 INCHES NOMINAL IN, center_hole_diameter: 0.417 INCHES MINIMUM AND 0.431 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 5331-00-401-4902, 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
S9412-111
NSN: 5331-00-401-4902
FSC: 5331 — O-RING
CAGE: 72599 — ALLIEDSIGNAL INC DBA ALLIED-SIGNAL AEROSPACE CO (USA)
SPECIFICATIONS
materialRUBBER
hardness_rating75.0 SHORE DUROMETER A NOMINAL
outside_diameter0.630 INCHES NOMINAL IN
center_hole_diameter0.417 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN
elongation_percentage125 MAXIMUM
cross-sectional_height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
NSN5331-00-401-4902
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: S9412-111 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
•
OUTSIDE DIAMETER: 0.630 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.417 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN
•
MATERIAL: RUBBER
•
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL
•
CROSS-SECTIONAL HEIGHT: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
ELONGATION PERCENTAGE125 MAXIMUM
OUTSIDE DIAMETER0.630 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.417 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN
MATERIALRUBBER
HARDNESS RATING75.0 SHORE DUROMETER A NOMINAL
CROSS-SECTIONAL HEIGHT0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
MIL-R-25988BInterchangeable
interchangeable cross-reference
interchangeable
MFF18T220941BInterchangeable
interchangeable cross-reference
interchangeable
99-4601-501Interchangeable
interchangeable cross-reference
interchangeable
5-818Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-25988/2Interchangeable
interchangeable cross-reference
interchangeable
M25988/2-229Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S9412-111?
S9412-111 is a O-RING.
What parts can replace S9412-111?
There are 20 known substitutes for S9412-111: MIL-R-25988B, MFF18T220941B, 99-4601-501 and 17 more. Substitute compatibility should be verified for your specific system.
Is S9412-111 still available?
S9412-111 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