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351-8955 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

351-8955: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER, temp_rating: -4.0 CELSIUS AND 150.0 CELSIUS DEGC, hardness_rating: 75.0 SHORE DUROMETER A NOMINAL, outside_diameter: 3.564 INCHES NOMINAL IN, end_item_identification: D6 XE DOZER, material_document_and_classification: MANUFACTURE REFERENCE MFR REF SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-696-7839, 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
351-8955
NSN: 5331-01-696-7839
FSC: 5331 — O-ring
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialRUBBER
temp_rating-4.0 CELSIUS AND 150.0 CELSIUS DEGC
hardness_rating75.0 SHORE DUROMETER A NOMINAL
outside_diameter3.564 INCHES NOMINAL IN
end_item_identificationD6 XE DOZER
material_document_and_classificationMANUFACTURE REFERENCE MFR REF SINGLE MATERIAL RESPONSE
part_name_assigned_by_controlling_agencyO-RING
NSN5331-01-696-7839
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 351-8955 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
•
TEMP RATING: -4.0 CELSIUS AND 150.0 CELSIUS DEGC
•
OUTSIDE DIAMETER: 3.564 INCHES NOMINAL IN
•
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MANUFACTURE REFERENCE MFR REF SINGLE MATERIAL RESPONSE
•
COLOR: BLUE
TECHNICAL CHARACTERISTICS
TEMP RATING-4.0 CELSIUS AND 150.0 CELSIUS DEGC
OUTSIDE DIAMETER3.564 INCHES NOMINAL IN
HARDNESS RATING75.0 SHORE DUROMETER A NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMANUFACTURE REFERENCE MFR REF SINGLE MATERIAL RESPONSE
COLORBLUE
SPECIAL FEATURESO-RING IS COMPATIBLE WITH DIESTER LUBRICANTS,HALOGENATED HYDROCARBONS(ABOVE 100 DEGREES CELSIUS),PETROLEUM FLUIDS,PHOSPHATE,AND SOME ACIDS,NOT COMPATIBLE WITH AMINES,BRAKE FLUIDS,ENGINE COOLANT,STEAM,WATER,CROSS SECTION DIAMETER:0.103 INCH NOMINAL,INSIDE DIAMETER:3.358 INCH NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYO-RING
END ITEM IDENTIFICATIOND6 XE DOZER
MATERIALRUBBER
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971 5331-00-001-1979 5331-00-001-3904 5331-00-001-3905 5331-00-001-3906 5331-00-001-3908 5331-00-001-3923 5331-00-001-3924
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 351-8955?
351-8955 is a O-RING.
What is the NSN for 351-8955?
351-8955 is cataloged in the U.S. Government catalog under NSN 5331-01-696-7839. This indicates validated use in U.S. government and defense supply chains.
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