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Technical Data Sheet
PartsTable / O-RING / 803426-3
803426-3 ✓ 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 CLEVIS,BELLCRANK,INDEX is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: SPECIAL CLEANING NOT REQUIRED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-816-3546, 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
803426-3
NSN: 5331-00-816-3546
FSC: 5331 — O-RING
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
general_characteristics_item_descriptionSPECIAL CLEANING NOT REQUIRED
NSN5331-00-816-3546
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 803426-3 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
•
CENTER HOLE DIAMETER: 1.465 INCHES MINIMUM AND 1.485 INCHES MAXIMUM IN
•
HARDNESS RATING: 90.0 SHORE DUROMETER A NOMINAL
•
OUTSIDE DIAMETER: 1.689 INCHES MINIMUM AND 1.733 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.114 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER1.465 INCHES MINIMUM AND 1.485 INCHES MAXIMUM IN
HARDNESS RATING90.0 SHORE DUROMETER A NOMINAL
OUTSIDE DIAMETER1.689 INCHES MINIMUM AND 1.733 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.114 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
906-20-739-90Interchangeable
interchangeable cross-reference
interchangeable
3-20N168-8Interchangeable
interchangeable cross-reference
interchangeable
STSPK300-20Interchangeable
interchangeable cross-reference
interchangeable
225120Interchangeable
interchangeable cross-reference
interchangeable
5330008037208Interchangeable
interchangeable cross-reference
interchangeable
GHN10093-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 803426-3?
803426-3 is a CLEVIS,BELLCRANK,INDEX.
What parts can replace 803426-3?
There are 25 known substitutes for 803426-3: 906-20-739-90, 3-20N168-8, STSPK300-20 and 22 more. Substitute compatibility should be verified for your specific system.
Is 803426-3 still available?
803426-3 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