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Technical Data Sheet
PartsTable / O-RING / WA178G03465AU4A
WA178G03465AU4A ✓ Verified by PartsTable
— · 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 O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, outside_diameter: 1.485 INCHES MINIMUM AND 1.523 INCHES MAXIMUM IN, center_hole_diameter: 1.358 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-580-5056, 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
WA178G03465AU4A
NSN: 5331-00-580-5056
FSC: 5331 — O-RING
CAGE: F8300 — CIMD (CENTRE D'IDENTIFICATION DES MATERIELS DE LA DEFENSE) (FRA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
outside_diameter1.485 INCHES MINIMUM AND 1.523 INCHES MAXIMUM IN
center_hole_diameter1.358 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN
cross-sectional_height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
NSN5331-00-580-5056
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: WA178G03465AU4A 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: 1.358 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 1.485 INCHES MINIMUM AND 1.523 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER1.358 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
OUTSIDE DIAMETER1.485 INCHES MINIMUM AND 1.523 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
MS28775-210Interchangeable
interchangeable cross-reference
interchangeable
A25141-210-479-7Interchangeable
interchangeable cross-reference
interchangeable
A5-4150Interchangeable
interchangeable cross-reference
interchangeable
42091-01-40-002PC42Interchangeable
interchangeable cross-reference
interchangeable
29513-134Interchangeable
interchangeable cross-reference
interchangeable
34702-83 V1AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is WA178G03465AU4A?
WA178G03465AU4A is a O-RING.
What parts can replace WA178G03465AU4A?
There are 22 known substitutes for WA178G03465AU4A: MS28775-210, A25141-210-479-7, A5-4150 and 19 more. Substitute compatibility should be verified for your specific system.
Is WA178G03465AU4A still available?
WA178G03465AU4A is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026