PartsTable
Technical Data Sheet
PartsTable / O-RING / S8990-520
S8990-520 ✓ 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 500.0 FAHRENHEIT DEGF, hardness_rating: 75.0 SHORE DUROMETER A NOMINAL, outside_diameter: 0.624 INCHES NOMINAL IN, center_hole_diameter: 0.463 INCHES MINIMUM AND 0.473 INCHES MAXIMUM IN, elongation_percentage: 125 MAXIMUM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-102-4452, 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
S8990-520
NSN: 5331-00-102-4452
FSC: 5331 — O-RING
CAGE: 99193 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE - PHOENIX (USA)
SPECIFICATIONS
materialRUBBER SILICONE CLASS Q
temp_rating-85.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF
hardness_rating75.0 SHORE DUROMETER A NOMINAL
outside_diameter0.624 INCHES NOMINAL IN
center_hole_diameter0.463 INCHES MINIMUM AND 0.473 INCHES MAXIMUM IN
elongation_percentage125 MAXIMUM
cross-sectional_height0.075 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
NSN5331-00-102-4452
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: S8990-520 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
•
CROSS-SECTIONAL HEIGHT: 0.074 INCHES MINIMUM AND 0.084 INCHES MAXIMUM IN
•
MATERIAL: RUBBER
•
CENTER HOLE DIAMETER: 0.462 INCHES MINIMUM AND 0.482 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.074 INCHES MINIMUM AND 0.084 INCHES MAXIMUM IN
MATERIALRUBBER
CENTER HOLE DIAMETER0.462 INCHES MINIMUM AND 0.482 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
MS9385-06ESInterchangeable
interchangeable cross-reference
interchangeable
MS9385-06Interchangeable
interchangeable cross-reference
interchangeable
093076-12X2ESInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy S8990-520?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is S8990-520?
S8990-520 is a O-RING.
What parts can replace S8990-520?
There are 3 known substitutes for S8990-520: MS9385-06ES, MS9385-06, 093076-12X2ES. Substitute compatibility should be verified for your specific system.
Is S8990-520 still available?
S8990-520 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — S8990-520

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026