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Technical Data Sheet
PartsTable / O-RING / AK25C85
AK25C85 ✓ 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 SILICONE CLASS Q, temp_rating: -85.0 FAHRENHEIT AND 401.0 FAHRENHEIT DEGF, hardness_rating: 50.0 SHORE DUROMETER A NOMINAL, outside_diameter: 0.691 INCHES NOMINAL IN, center_hole_diameter: 0.544 INCHES MINIMUM AND 0.558 INCHES MAXIMUM IN, cross-sectional_height: 0.062 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-845-8343, 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
AK25C85
NSN: 5331-00-845-8343
FSC: 5331 — O-RING
CAGE: 72914 — GRIMES AEROSPACE COMPANY (USA)
SPECIFICATIONS
materialRUBBER SILICONE CLASS Q
temp_rating-85.0 FAHRENHEIT AND 401.0 FAHRENHEIT DEGF
hardness_rating50.0 SHORE DUROMETER A NOMINAL
outside_diameter0.691 INCHES NOMINAL IN
center_hole_diameter0.544 INCHES MINIMUM AND 0.558 INCHES MAXIMUM IN
cross-sectional_height0.062 INCHES NOMINAL IN
NSN5331-00-845-8343
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AK25C85 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
•
TEMP RATING: -85.0 FAHRENHEIT AND 401.0 FAHRENHEIT DEGF
•
CENTER HOLE DIAMETER: 0.544 INCHES MINIMUM AND 0.558 INCHES MAXIMUM IN
•
MATERIAL: RUBBER SILICONE CLASS Q
•
OUTSIDE DIAMETER: 0.691 INCHES NOMINAL IN
•
HARDNESS RATING: 50.0 SHORE DUROMETER A NOMINAL
•
CROSS-SECTIONAL HEIGHT: 0.062 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
TEMP RATING-85.0 FAHRENHEIT AND 401.0 FAHRENHEIT DEGF
CENTER HOLE DIAMETER0.544 INCHES MINIMUM AND 0.558 INCHES MAXIMUM IN
MATERIALRUBBER SILICONE CLASS Q
OUTSIDE DIAMETER0.691 INCHES NOMINAL IN
HARDNESS RATING50.0 SHORE DUROMETER A NOMINAL
CROSS-SECTIONAL HEIGHT0.062 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
C10096-0060-0013Interchangeable
interchangeable cross-reference
interchangeable
AS568-013Interchangeable
interchangeable cross-reference
interchangeable
AMS3303-013ESInterchangeable
interchangeable cross-reference
interchangeable
AMS3303Interchangeable
interchangeable cross-reference
interchangeable
AS568-908Interchangeable
interchangeable cross-reference
interchangeable
MS9393-06Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AK25C85?
AK25C85 is a O-RING.
What parts can replace AK25C85?
There are 25 known substitutes for AK25C85: C10096-0060-0013, AS568-013, AMS3303-013ES and 22 more. Substitute compatibility should be verified for your specific system.
Is AK25C85 still available?
AK25C85 is currently cancelled.
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Last verified: July 2026