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PartsTable / COMPONENT / A79563
A79563 ✓ 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 PLUG,EXPANSION is a the manufacturer industrial component. Key specifications include height: 0.344 INCHES NOMINAL IN, material: COPPER ALLOY, outside_diameter: 0.918 INCHES MINIMUM AND 0.922 INCHES MAXIMUM IN, special_features: 2 DEG TAPER IN SIDEWALL, style_designator: CUP, material_thickness: 0.031 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-274-5230, 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
A79563
NSN: 5340-00-274-5230
FSC: 5340
CAGE: 00198 — PRATT & WHITNEY CANADA CORP DIV PRATT & WHITNEY CANADA CORP. (CAN)
SPECIFICATIONS
height0.344 INCHES NOMINAL IN
materialCOPPER ALLOY
outside_diameter0.918 INCHES MINIMUM AND 0.922 INCHES MAXIMUM IN
special_features2 DEG TAPER IN SIDEWALL
style_designatorCUP
material_thickness0.031 INCHES NOMINAL IN
material_document_and_classificationAMS 4505 ASSN STD SINGLE MATERIAL RESPONSE
NSN5340-00-274-5230
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A79563 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
•
STYLE DESIGNATOR: CUP
•
MATERIAL THICKNESS: 0.031 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 4505 ASSN STD SINGLE MATERIAL RESPONSE
•
MATERIAL: COPPER ALLOY
•
OUTSIDE DIAMETER: 0.918 INCHES MINIMUM AND 0.922 INCHES MAXIMUM IN
•
HEIGHT: 0.344 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORCUP
MATERIAL THICKNESS0.031 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4505 ASSN STD SINGLE MATERIAL RESPONSE
MATERIALCOPPER ALLOY
SPECIAL FEATURES2 DEG TAPER IN SIDEWALL
OUTSIDE DIAMETER0.918 INCHES MINIMUM AND 0.922 INCHES MAXIMUM IN
HEIGHT0.344 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
EW57850Interchangeable
interchangeable cross-reference
interchangeable
172-152Interchangeable
interchangeable cross-reference
interchangeable
WC-57850Interchangeable
interchangeable cross-reference
interchangeable
355-2Interchangeable
interchangeable cross-reference
interchangeable
817094Interchangeable
interchangeable cross-reference
interchangeable
N219042Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A79563?
A79563 is a PLUG,EXPANSION.
What parts can replace A79563?
There are 13 known substitutes for A79563: EW57850, 172-152, WC-57850 and 10 more. Substitute compatibility should be verified for your specific system.
Is A79563 still available?
A79563 is currently cancelled.
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Last verified: July 2026