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 500.0 FAHRENHEIT DEGF, hardness_rating: 75.0 SHORE DUROMETER A NOMINAL, outside_diameter: 0.429 INCHES NOMINAL IN, center_hole_diameter: 0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN, elongation_percentage: 125 MAXIMUM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-221-6178, 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
S8990-579
NSN:5331-00-221-6178 FSC:5331 — O-RING CAGE:59364 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE - TEMPE (WEST WARNER ROAD) (USA)
SPECIFICATIONS
material
RUBBER SILICONE CLASS Q
temp_rating
-85.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF
hardness_rating
75.0 SHORE DUROMETER A NOMINAL
outside_diameter
0.429 INCHES NOMINAL IN
center_hole_diameter
0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
elongation_percentage
125 MAXIMUM
cross-sectional_height
0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
NSN
5331-00-221-6178
COMPONENT DIAGRAM
KEY FEATURES
•
OUTSIDE DIAMETER: 0.429 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
•
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL
•
MATERIAL: RUBBER SILICONE CLASS Q
•
TEMP RATING: -85.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF
•
ELONGATION PERCENTAGE: 125 MAXIMUM
•
CENTER HOLE DIAMETER: 0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
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FREQUENTLY ASKED QUESTIONS
What is S8990-579?
S8990-579 is a O-RING.
What parts can replace S8990-579?
There are 23 known substitutes for S8990-579: MS9385-05, MS9385-06ES, MS9385-06 and 20 more. Substitute compatibility should be verified for your specific system.
Is S8990-579 still available?
S8990-579 is currently cancelled.
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