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Technical Data Sheet
PartsTable / COMPONENT / 425566
425566 ✓ 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 PACKING WITH RETAINER is a the manufacturer industrial component. Key specifications include material: STEEL RETAINER, construction: ONE-PIECE, outside_diameter: 1.750 INCHES NOMINAL IN, surface_treatment: CADMIUM RETAINER, retainer_thickness: 0.125 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-495-3309, 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
425566
NSN: 5330-00-495-3309
FSC: 5330
CAGE: 49956 — RAYTHEON COMPANY DIV CORP (USA)
SPECIFICATIONS
materialSTEEL RETAINER
constructionONE-PIECE
outside_diameter1.750 INCHES NOMINAL IN
surface_treatmentCADMIUM RETAINER
retainer_thickness0.125 INCHES NOMINAL IN
NSN5330-00-495-3309
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 425566 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
•
MATERIAL: RUBBER SYNTHETIC PACKING
•
CONSTRUCTION: ONE-PIECE
•
OUTSIDE DIAMETER: 1.750 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM RETAINER
•
RETAINER THICKNESS: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER SYNTHETIC PACKING
MATERIALSTEEL RETAINER
CONSTRUCTIONONE-PIECE
OUTSIDE DIAMETER1.750 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM RETAINER
RETAINER THICKNESS0.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
7500-1Interchangeable
interchangeable cross-reference
interchangeable
5952-6Interchangeable
interchangeable cross-reference
interchangeable
A7-500-1Interchangeable
interchangeable cross-reference
interchangeable
D904 ITEM9Interchangeable
interchangeable cross-reference
interchangeable
D904Interchangeable
interchangeable cross-reference
interchangeable
M83461/1-218Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 425566?
425566 is a PACKING WITH RETAINER.
What parts can replace 425566?
There are 9 known substitutes for 425566: 7500-1, 5952-6, A7-500-1 and 6 more. Substitute compatibility should be verified for your specific system.
Is 425566 still available?
425566 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026