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185D7159-4 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

185D7159-4: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include special_features: TYPE ETHYLENE PROPYLENE, ID - 2.614, WIDTH 0.07, DUROMETER 80, center_hole_diameter: 2.614 INCHES NOMINAL IN, part_name_assigned_by_controlling_agency: ATTRIBUTE VALUE O-RIRG RUBBER. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-561-4986, 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
185D7159-4
NSN: 5331-01-561-4986
FSC: 5331 — O-ring
CAGE: 04241 — FLUOR MARINE PROPULSION, LLC DBA KNOLLS ATOMIC POWER LABORATORY (USA)
SPECIFICATIONS
special_featuresTYPE ETHYLENE PROPYLENE, ID - 2.614, WIDTH 0.07, DUROMETER 80
center_hole_diameter2.614 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyATTRIBUTE VALUE O-RIRG RUBBER
NSN5331-01-561-4986
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 185D7159-4 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: 2.614 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESTYPE ETHYLENE PROPYLENE, ID - 2.614, WIDTH 0.07, DUROMETER 80
CENTER HOLE DIAMETER2.614 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYATTRIBUTE VALUE O-RIRG RUBBER
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
AS568A-038Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 185D7159-4?
185D7159-4 is a O-RING.
What parts can replace 185D7159-4?
There is 1 known substitute for 185D7159-4: AS568A-038. Substitute compatibility should be verified for your specific system.
What is the NSN for 185D7159-4?
185D7159-4 is cataloged in the U.S. Government catalog under NSN 5331-01-561-4986. 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.