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FF9855-18 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

FF9855-18: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, temp_rating: -65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF, center_hole_diameter: 0.739 INCHES NOMINAL IN, cross-sectional_height: 0.070 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-363-7073, 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
FF9855-18
NSN: 5331-01-363-7073
FSC: 5331 — O-ring
CAGE: 01276 — DANFOSS POWER SOLUTIONS II, LLC (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
temp_rating-65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
center_hole_diameter0.739 INCHES NOMINAL IN
cross-sectional_height0.070 INCHES NOMINAL IN
NSN5331-01-363-7073
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: FF9855-18 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: -65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
•
CROSS-SECTIONAL HEIGHT: 0.070 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.739 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
TEMP RATING-65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
CROSS-SECTIONAL HEIGHT0.070 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.739 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
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 1
2HP853Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is FF9855-18?
FF9855-18 is a O-RING.
What parts can replace FF9855-18?
There is 1 known substitute for FF9855-18: 2HP853. Substitute compatibility should be verified for your specific system.
What is the NSN for FF9855-18?
FF9855-18 is cataloged in the U.S. Government catalog under NSN 5331-01-363-7073. 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.