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855426 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

855426: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include end_item_identification: ENGINE, OUTBOARD, GAS, 250HP, STD ROTATE; ENGINE, OUTBOARD, GAS, 250HP, CTR ROTATE, part_name_assigned_by_controlling_agency: O-RING CLASS 25. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-291-6401, 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
855426
NSN: 5330-00-291-6401
NIINs: 002916401, 015868139
FSC: 5330 — Packing and Gasket Materials
CAGE: 12204 — CHRYSLER REALTY COMPANY LLC DBA DAIMLER CHRYSLER (USA)
SPECIFICATIONS
end_item_identificationENGINE, OUTBOARD, GAS, 250HP, STD ROTATE; ENGINE, OUTBOARD, GAS, 250HP, CTR ROTATE
part_name_assigned_by_controlling_agencyO-RING CLASS 25
NSN5330-00-291-6401
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 855426 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
•
SEAL WIDTH: 0.344 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN
•
SEALING ELEMENT STYLE: ANGULAR
•
OUTSIDE DIAMETER: 32.1 MILLIMETERS NOMINAL MM
•
HOUSING BORE DIAMETER: 0.999 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 0.375 INCHES NOMINAL IN
•
MATERIAL: LEATHER SEALING ELEMENT A
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.344 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN
SEALING ELEMENT STYLEANGULAR
OUTSIDE DIAMETER32.1 MILLIMETERS NOMINAL MM
HOUSING BORE DIAMETER0.999 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER0.375 INCHES NOMINAL IN
MATERIALLEATHER SEALING ELEMENT A
MATERIALRUBBER SYNTHETIC SEALING ELEMENT B
SUBSTITUTES & CROSS-REFERENCES 2
50197Reference document
Same NSN cross-reference
Reference document — Secondary reference
43-1413Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 855426?
855426 is a O-RING.
What parts can replace 855426?
There are 2 known substitutes for 855426: 50197, 43-1413. Substitute compatibility should be verified for your specific system.
What is the NSN for 855426?
855426 is cataloged in the U.S. Government catalog under NSN 5330-00-291-6401. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.