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Technical Data Sheet
PartsTable / O-RING / 81426
81426 ✓ Verified by PartsTable
Jumbo · 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 BALL,BEARING is a Jumbo industrial component. Key specifications include material: RUBBER SYNTHETIC, hardness_rating: 68.0 SHORE DUROMETER A NOMINAL, center_hole_diameter: 5.794 INCHES NOMINAL IN, cross-sectional_height: 0.103 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-290-8783, 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
81426
NSN: 5331-00-290-8783
FSC: 5331 — O-RING
CAGE: 21587 — OPTICAL TECHNOLOGY DEVICES INC (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
hardness_rating68.0 SHORE DUROMETER A NOMINAL
center_hole_diameter5.794 INCHES NOMINAL IN
cross-sectional_height0.103 INCHES NOMINAL IN
NSN5331-00-290-8783
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 81426 MFR: Jumbo ⚠ 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: 5.794 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.103 INCHES NOMINAL IN
•
HARDNESS RATING: 68.0 SHORE DUROMETER A NOMINAL
•
MATERIAL: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER5.794 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.103 INCHES NOMINAL IN
HARDNESS RATING68.0 SHORE DUROMETER A NOMINAL
MATERIALRUBBER SYNTHETIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
MS38338-135Interchangeable
interchangeable cross-reference
interchangeable
68700Interchangeable
interchangeable cross-reference
interchangeable
FS1072Interchangeable
interchangeable cross-reference
interchangeable
42TB8Interchangeable
interchangeable cross-reference
interchangeable
8-142YInterchangeable
interchangeable cross-reference
interchangeable
26KP457Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 81426?
81426 is a BALL,BEARING manufactured by Jumbo.
What parts can replace 81426?
There are 8 known substitutes for 81426: MS38338-135, 68700, FS1072 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 81426?
81426 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-290-8783. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026